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12 pages, 680 KB  
Article
Profiles of Hesitancy Toward the Herpes Zoster Vaccine Among Older Adults in China: A Latent Profile Analysis
by Jianing Dai, Yuanruo Xie, Yuxing Wang, Shuai Yuan, Ling Zhu, Qiang Zeng, Gang Liu, Lili You and Zhujiazi Zhang
Vaccines 2026, 14(4), 331; https://doi.org/10.3390/vaccines14040331 - 8 Apr 2026
Viewed by 514
Abstract
Background: Understanding diverse psychological factors is crucial for promoting vaccination. This study focuses on psychological factors influencing HZ vaccination attitudes and intentions among older adults who have not yet received the HZ vaccine in China. Methods: We conducted a cross-sectional survey [...] Read more.
Background: Understanding diverse psychological factors is crucial for promoting vaccination. This study focuses on psychological factors influencing HZ vaccination attitudes and intentions among older adults who have not yet received the HZ vaccine in China. Methods: We conducted a cross-sectional survey of 12,357 older adults (aged ≥60 years) who had not previously received the HZ vaccine. Latent Profile Analysis (LPA) was performed using the 5C psychological antecedents of vaccination (Confidence, Constraints, Calculation, Complacency, and Collective Responsibility). Multinomial logistic regression and Chi-square tests were used to identify predictors of profile membership and to investigate the nature of reported barriers. Results: An optimal five-profile solution was identified, with the largest group being “Willing but Obstructed” (44.6%). This profile exhibited high vaccination willingness but perceived the most significant constraints. While household income was not a direct predictor of profile membership, low-income individuals were significantly more likely to report ‘high cost’ as a primary barrier (p < 0.01), revealing that socioeconomic status appears to influence vaccination intention through tangible structural obstacles. Conclusions: Vaccination attitudes among previously unvaccinated older adults are heterogeneous. A substantial proportion are willing to be vaccinated but are hindered by socioeconomic barriers, primarily cost. Addressing the intention–behavior gap may require a shift from universal messaging to equity-focused interventions that directly address structural barriers for vulnerable groups, particularly among those who have not yet initiated vaccination. Full article
(This article belongs to the Section Vaccines and Public Health)
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11 pages, 223 KB  
Review
Closing the Gap Between HIV Testing Guidelines and Dermatology: A Narrative Review of Missed Opportunities in Indicator Condition-Guided Testing
by Maria Gabriella Donà and Alessandra Latini
Venereology 2026, 5(2), 11; https://doi.org/10.3390/venereology5020011 - 1 Apr 2026
Viewed by 288
Abstract
Background/Objectives: Early diagnosis of HIV remains a key objective of global health strategies; however, nearly half of HIV infections in Europe (47.0%) continue to be diagnosed at a late stage. Individuals with undiagnosed HIV infection frequently present initially to dermatology services with [...] Read more.
Background/Objectives: Early diagnosis of HIV remains a key objective of global health strategies; however, nearly half of HIV infections in Europe (47.0%) continue to be diagnosed at a late stage. Individuals with undiagnosed HIV infection frequently present initially to dermatology services with inflammatory or pruritic dermatoses. Indicator condition-guided (IC-guided) HIV testing has been reaffirmed by recent guidelines as a central pillar of differentiated testing services, with explicit recommendations to systematically offer testing when defined conditions are present. Methods: This narrative review compares current HIV testing and IC-guided testing recommendations with major dermatology guidelines. Results: This comparison highlights a persistent misalignment. Although certain conditions, such as herpes zoster in younger adults, crusted scabies and selected forms of chronic pruritus, carry clear recommendations to offer HIV testing, most dermatology guidelines for chronic inflammatory dermatoses do not include HIV testing as part of routine assessment. Observational data and implementation studies indicate that integrating IC-guided testing into dermatology pathways can identify previously undiagnosed HIV infections, often in patients without recognised risk factors. Conclusions: Our observations highlight the need to integrate HIV testing recommendations into dermatology clinical guidelines. Aligning these guidelines with IC-guided testing strategies is not only feasible but can also reduce late HIV diagnoses arising from dermatology services. Full article
(This article belongs to the Special Issue Decoding the Skin: HIV, STIs, and the Venereologist Perspective)
14 pages, 237 KB  
Article
The Impact of a Dedicated In-Hospital Vaccination Clinic on Adherence to Herpes Zoster Vaccination Among Immunocompromised and Frail Adults: Findings from an Italian Quasi-Experimental Study
by Alessandra De Pasquale, Adele Sarcone, Mariangela Cassadonte, Iole Camilla Iocca, Gabriella Di Giuseppe, Carmelo G. A. Nobile and Claudia Pileggi
Vaccines 2026, 14(4), 306; https://doi.org/10.3390/vaccines14040306 - 28 Mar 2026
Viewed by 505
Abstract
Background: Principal aims of this study were to evaluate, in frail immunocompromised patients, the willingness to receive the herpes zoster (HZ) vaccination and the impact of the in-hospital vaccination dedicated clinic on HZ vaccination adherence. Materials and methods: A non-randomized quasi-experimental intervention study [...] Read more.
Background: Principal aims of this study were to evaluate, in frail immunocompromised patients, the willingness to receive the herpes zoster (HZ) vaccination and the impact of the in-hospital vaccination dedicated clinic on HZ vaccination adherence. Materials and methods: A non-randomized quasi-experimental intervention study was conducted in Southern Italy among immunocompromised patients. Patients enrolled in the in-hospital vaccination dedicated clinic were included in the experimental group, while the control group consisted of patients recruited in the General Practitioners clinics. Results: From April 2024 to March 2025, 369 patients were recruited, 183 of whom were included in the experimental group and 186 in the control group, The willingness to receive HZ vaccination was declared by 46.3% of subjects, and among those, 28.5% underwent vaccination. Logistic regression results showed that participants in the experimental group were significantly more likely to both declare willingness to receive vaccination (OR = 6.32; 95% CI 3.05–13.10) and to adhere to HZ vaccination (OR = 64.63; 95% CI 14.78–282.62). Conclusions: Our findings have shown that both willingness and adherence to HZ vaccination in immunocompromised subjects remain inadequate with respect to international targets and provide an effective model of integration between different professionals capable of promoting greater accessibility and adherence to HZ vaccination. Full article
(This article belongs to the Special Issue Factors Influencing Vaccine Uptake and Immunization Outcomes)
13 pages, 644 KB  
Article
Adverse Events in Patients with Inflammatory Bowel Disease Treated with Advanced Therapies: A Nationwide, Population-Based, Propensity-Matched Cohort Study
by Hyoung Il Choi, Jung Rock Moon, Seon Hwa Lee and Jae Myung Cha
J. Clin. Med. 2026, 15(7), 2562; https://doi.org/10.3390/jcm15072562 - 27 Mar 2026
Viewed by 340
Abstract
Background: Safety profiles of advanced therapies (ATs) for inflammatory bowel disease (IBD) may be underestimated in clinical trials due to low event rates and heterogeneous adverse events (AEs). Methods: Using Korean nationwide claims data (2012–2022), incident IBD patients were identified and classified [...] Read more.
Background: Safety profiles of advanced therapies (ATs) for inflammatory bowel disease (IBD) may be underestimated in clinical trials due to low event rates and heterogeneous adverse events (AEs). Methods: Using Korean nationwide claims data (2012–2022), incident IBD patients were identified and classified into AT and non-AT groups. After:1 propensity score matching, risks of tuberculosis (TB), herpes zoster (HZ), and bowel malignancy as primary AEs, and anxiety/depression as secondary AEs, were evaluated. Results: After matching, 11,205 patients were included in each group. Overall AT use was not associated with a significant increase in TB risk compared with non-AT therapy (hazard ratio [HR] 1.2; p = 0.335), whereas anti–TNF biologics showed higher TB risk (HR 2.0; incidence rate [IR] 100.2 vs. 65.4 per 105 person year [PY]; p < 0.001). AT use was associated with a modestly increased risk of HZ (HR 1.4; IR 2165.8 vs. 2151.3 per 105 PY; p < 0.001), with the highest incidence in small-molecule agents (HR 2.0; IR 4134.2 per 105 PY). The risk of bowel malignancy did not differ between AT and non-AT groups (HR 1.2; p = 0.475). Both anti–TNF and non–anti-TNF biologics were associated with reduced risk of anxiety/depression compared with non-AT therapy (both HR 0.8; p < 0.001 and p = 0.004, respectively). Conclusions: Overall AT use was not associated with an increased risk of TB, whereas anti–TNF biologics were associated with a higher risk of TB. AT use was also associated with an increased risk of HZ, particularly with small-molecule agents, and a lower risk of anxiety/depression. Full article
(This article belongs to the Section Gastroenterology & Hepatopancreatobiliary Medicine)
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14 pages, 2269 KB  
Article
Real-World Vaccination Data Analysis for Three Vaccines Among Individuals Aged 60 and Older in Shanghai, China
by Juan Li, Mingzhu Lin, Yong Feng, Wanran Cheng, Cuiping Zhou, Shaotan Xiao, Pengfei Deng and Laibao Yang
Vaccines 2026, 14(3), 246; https://doi.org/10.3390/vaccines14030246 - 7 Mar 2026
Viewed by 756
Abstract
Background: Vaccines targeting herpes zoster, influenza, and pneumococcal diseases represent the most effective interventions for reducing morbidity and mortality in individuals aged ≥65 years. This study employs real-world vaccination data for herpes zoster vaccine (HZV), influenza vaccine (InfV), and 23-valent pneumococcal polysaccharide [...] Read more.
Background: Vaccines targeting herpes zoster, influenza, and pneumococcal diseases represent the most effective interventions for reducing morbidity and mortality in individuals aged ≥65 years. This study employs real-world vaccination data for herpes zoster vaccine (HZV), influenza vaccine (InfV), and 23-valent pneumococcal polysaccharide vaccine (PPSV23) among individuals aged ≥60 years in the Pudong New Area of Shanghai, China, from 2020 to 2024, aiming to assess the vaccination coverage for the three vaccines. Methods: Demographic data and vaccination records for HZV, InfV, and PPSV23 were obtained from the Shanghai Immunization Information System. Vaccination coverage, temporal trends, and disparities across different demographic groups and subdistricts or towns were analyzed. Results: From 2020 to 2024, a total of 26,227 doses of HZV, 198,373 doses of InfV, and 102,644 doses of PPSV23 were administered to adults aged ≥60 years in the Pudong New Area of Shanghai, with vaccination coverage of 0.23%, 3.12%, and 1.61%, respectively. HZV coverage peaked in 2023 (0.34%), whereas the highest coverage for InfV (3.94%) and PPSV23 (3.21%) occurred in 2020. The highest vaccination coverage was observed in the 70–74 age group for HZV (0.30%), the 75–79 age group for InfV (5.18%), and the 65–69 age group for PPSV23 (2.15%). Coverage for HZV and InfV was higher among females than males, while PPSV23 coverage was higher among males. Individuals with local household registration had significantly higher coverage for all three vaccines compared to those with non-local registration. The subdistricts or towns with the highest HZV coverage were Jinqiao Town (0.59%), Huamu Subdistrict (0.50%), and Lujiazui Subdistrict (0.34%). For InfV, the highest coverage was observed in Tangqiao Subdistrict (5.50%), Huamu Subdistrict (5.46%), and Lujiazui Subdistrict (4.88%). For PPSV23, the top three were Laogang Town (2.79%), Nicheng Town (2.01%), and Datuan Town (1.93%). Significant spatial clustering was observed for HZV and InfV. Conclusions: Vaccination coverage for HZV, InfV, and PPSV23 among adults aged ≥60 years in the Pudong New Area of Shanghai from 2020 to 2024 was generally low, with evident temporal variations and demographic and spatial disparities. Coverage differed by age group, gender, household registration status, and subdistricts or towns. These findings indicate that future interventions are still needed to increase vaccination coverage among older adults. Full article
(This article belongs to the Special Issue Vaccine-Preventable Transmission Diseases)
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11 pages, 219 KB  
Article
From Knowledge to Action: Enhancing Herpes Zoster Vaccine Uptake in Diabetic Patients Through Targeted Interventions
by Marco Fabbri, Giorgio Cavalli, Valeria Frassineti, Paolo Di Bartolo, Chiara Reali, Elizabeth Bakken, Michela Morri, Gianluigi Belloli, Gianpiero Mancini, Manuela Chiavarini and Giulia Silvestrini
Vaccines 2026, 14(3), 209; https://doi.org/10.3390/vaccines14030209 - 26 Feb 2026
Viewed by 519
Abstract
Background/Objectives: Vaccinations are a cost-effective strategy to reduce morbidity and mortality from infectious diseases, particularly in individuals with diabetes mellitus (DM). Despite recommendations for routine vaccination, uptake among adults with DM remains suboptimal. This study evaluates the effectiveness of interventions aimed at [...] Read more.
Background/Objectives: Vaccinations are a cost-effective strategy to reduce morbidity and mortality from infectious diseases, particularly in individuals with diabetes mellitus (DM). Despite recommendations for routine vaccination, uptake among adults with DM remains suboptimal. This study evaluates the effectiveness of interventions aimed at increasing Herpes Zoster (HZ) vaccine coverage in diabetic patients. Methods: This study included diabetic patients residing in the Romagna Local Health Authority (1.2 million inhabitants). Two complementary strategies were implemented: patient-oriented interventions (reminders/recalls) and provider-focused actions to engage general practitioners and diabetologists. Vaccination coverage in December 2023 was compared with December 2024, stratified by age, sex, and nationality. Primary outcomes were changes in coverage and intervention impact. Multivariate logistic regression assessed sociodemographic determinants of adherence. Results: As of 31 December 2023, 5182 diabetic patients had received at least one dose of Herpes Zoster vaccine (7.4% coverage). In 2024, overall coverage (11.1%) increased across all sociodemographic groups. Coverage rose to 12.8% in males and 9.0% in females and to 11.7% among Italian citizens, while foreign citizens showed lower absolute levels but a greater proportional increase. By age, individuals born after 1958 exhibited the largest relative growth, whereas those born in 1952–1958 reached the highest absolute coverage in 2024. Male sex, the 1952–1958 birth cohort, and Italian citizenship were associated with a higher likelihood of vaccination in both years. Conclusions: Our findings show a positive trend in Herpes Zoster vaccination among diabetic patients in Romagna HLA, driven by patient reminders, provider engagement, and age-targeted campaigns, while persistent sociodemographic disparities underscore the need for tailored strategies to optimize coverage. Full article
(This article belongs to the Section Epidemiology and Vaccination)
16 pages, 928 KB  
Review
Bispecific Antibodies in B-Cell Lymphomas: Mechanisms, Efficacy, Toxicity, and Management
by Ádám Jóna, Dávid Tóthfalusi, Árpád Illés and Zsófia Miltényi
Medicina 2026, 62(2), 342; https://doi.org/10.3390/medicina62020342 - 8 Feb 2026
Viewed by 752
Abstract
Bispecific antibodies represent a pivotal advancement in treating relapsed/refractory B-cell lymphomas, addressing unmet needs for patients with limited conventional options. This review examines CD20 × CD3 bispecific antibodies (BsAbs) like mosunetuzumab, epcoritamab, odronextamab, and glofitamab, which link malignant B-cells and T-cells, thus inducing [...] Read more.
Bispecific antibodies represent a pivotal advancement in treating relapsed/refractory B-cell lymphomas, addressing unmet needs for patients with limited conventional options. This review examines CD20 × CD3 bispecific antibodies (BsAbs) like mosunetuzumab, epcoritamab, odronextamab, and glofitamab, which link malignant B-cells and T-cells, thus inducing targeted tumor lysis. These IgG-like molecules activate T-cells, triggering proliferation and cytotoxic molecule release, bypassing MHC presentation. These agents have received regulatory approval for the treatment of various B-cell lymphomas and exhibit substantial efficacy, with high overall and complete response rates in diffuse large B-cell lymphoma and follicular lymphoma. However, their use is associated with immune-related toxicities. Cytokine Release Syndrome, which is a systemic inflammatory response due to a cytokine surge, and Immune Effector Cell-Associated Neurotoxicity Syndrome, linked to endothelial activation and blood–brain barrier disruption, are critical concerns. This review details their mechanisms, grading, and management, including the use of tocilizumab and corticosteroids. Furthermore, BsAb therapy carries an elevated susceptibility to viral, bacterial, and opportunistic infections, often exacerbated by hypogammaglobulinemia. Expert recommendations for antimicrobial prophylaxis, including herpes and varicella zoster virus, pneumocystis, and immunoglobulin supplements are crucial for mitigating these risks. While BsAbs offer an “off-the-shelf” advantage, balancing their efficacy with comprehensive toxicity management is crucial for maximizing patient outcomes. Full article
(This article belongs to the Special Issue Hematologic Malignancies: Diagnosis, Prognosis and Management)
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15 pages, 911 KB  
Review
The Role of Metabolites in Acyclovir-Induced Neurotoxicity and Nephrotoxicity
by Asma Aboelezz and Sherif Hanafy Mahmoud
Medicines 2026, 13(1), 6; https://doi.org/10.3390/medicines13010006 - 2 Feb 2026
Viewed by 1330
Abstract
Acyclovir is an antiviral drug effective against infections caused by herpes simplex and varicella zoster viruses. It is given intravenously to treat serious infections such as herpes encephalitis. High acyclovir concentrations could cause toxicity, observed mainly as nephrotoxicity and, to a lesser extent, [...] Read more.
Acyclovir is an antiviral drug effective against infections caused by herpes simplex and varicella zoster viruses. It is given intravenously to treat serious infections such as herpes encephalitis. High acyclovir concentrations could cause toxicity, observed mainly as nephrotoxicity and, to a lesser extent, neurotoxicity. Acyclovir nephrotoxicity is primarily attributed to the crystallization of acyclovir within the renal tubules, although additional mechanisms may also contribute. However, the mechanism of acyclovir-induced neurotoxicity is unknown. Acyclovir is mainly eliminated from the body through renal excretion; however, around 15–20% of acyclovir is metabolized subsequently by alcohol and aldehyde dehydrogenase to the main metabolite 9-carboxymethoxymethylguanine (CMMG), and around 2% is metabolized by aldehyde oxidase to the minor metabolite, 8-hydroxyl acyclovir. It has been suggested that CMMG levels above 10 µmol/mL in the serum and 1 µmol/mL in the cerebrospinal fluid are highly associated with neurotoxicity. Studies have shown that there is a potential contribution of CMMG to acyclovir-induced neurotoxicity and of the acyclovir aldehyde to nephrotoxicity. In this narrative review, we approach the topic of acyclovir metabolites and their association with acyclovir toxicity. Moreover, we identify the research gap of the mechanisms by which these metabolites contribute to toxicity. Full article
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23 pages, 4004 KB  
Review
Varicella-Zoster Virus and the Eye: Clinical Spectrum, Management, and Vaccination
by Wendong Gu, Yaru Zou, Mingming Yang, Jing Zhang, Zizhen Ye, Jiaxin Deng, Yuan Zong, Kyoko Ohno-Matsui and Koju Kamoi
Pathogens 2026, 15(2), 157; https://doi.org/10.3390/pathogens15020157 - 2 Feb 2026
Viewed by 1447
Abstract
Varicella-Zoster Virus (VZV) is one of the most important pathogens in ophthalmology. Reactivation may involve the adnexa (blepharoconjunctivitis, pseudomembranous conjunctivitis), cornea (dendritic keratitis, nummular and necrotizing stromal keratitis, disciform endotheliitis, neurotrophic ulcers, mucous-plaque keratitis) and sclera (episcleritis, anterior scleritis). Uveal inflammation ranges from [...] Read more.
Varicella-Zoster Virus (VZV) is one of the most important pathogens in ophthalmology. Reactivation may involve the adnexa (blepharoconjunctivitis, pseudomembranous conjunctivitis), cornea (dendritic keratitis, nummular and necrotizing stromal keratitis, disciform endotheliitis, neurotrophic ulcers, mucous-plaque keratitis) and sclera (episcleritis, anterior scleritis). Uveal inflammation ranges from anterior uveitis—with iris atrophy, trabeculitis-induced glaucoma and complicated cataract—to posterior necrotizing syndromes: acute retinal necrosis in immunocompetent hosts and progressive outer retinal necrosis in immunosuppressed patients, often complicated by occlusive vasculitis, macular edema, retinal detachment and phthisis. Optic nerve and cranial nerve involvement (optic neuritis, neuroretinitis, III/IV/VI palsies) and orbital inflammation may occur even without cutaneous signs (“zoster sine herpete”), making PCR-based intraocular diagnostics essential. Management relies on early, high-dose antivirals (acyclovir or valacyclovir), judicious corticosteroids and timely surgical intervention when required. Universal childhood varicella vaccination and recombinant zoster vaccination in adults ≥50 years have reduced VZV incidence and ocular complications in settings with high vaccine coverage, though rare post-vaccine keratitis or uveitis underscore the need for ongoing vigilance. In this review, we synthesize current knowledge on varicella-zoster virus ocular disease, with a focus on host–pathogen interactions that drive both injury and defense. Full article
(This article belongs to the Special Issue Pathogen–Host Interactions: Death, Defense, and Disease)
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12 pages, 842 KB  
Article
Viral Spectrum of Herpetic Keratitis: A 15-Year Retrospective Analysis from Switzerland
by Muntadher Al Karam, Sadiq Said, Anahita Bajka, Irene Voellmy, Michael Huber, Sandrine A. Zweifel, Daniel Barthelmes and Frank Blaser
Microorganisms 2026, 14(2), 268; https://doi.org/10.3390/microorganisms14020268 - 23 Jan 2026
Viewed by 558
Abstract
To evaluate the epidemiology of herpetic keratitis over a 15-year period at a tertiary care center in Switzerland, focusing on the relative incidence of herpes simplex virus (HSV)-1, HSV-2, and varicella zoster virus (VZV), gender distribution, and co-infections, we conducted a retrospective single-center [...] Read more.
To evaluate the epidemiology of herpetic keratitis over a 15-year period at a tertiary care center in Switzerland, focusing on the relative incidence of herpes simplex virus (HSV)-1, HSV-2, and varicella zoster virus (VZV), gender distribution, and co-infections, we conducted a retrospective single-center analysis of polymerase chain reaction (PCR) assays from corneal and conjunctival scrapings of suspected herpetic keratitis at a tertiary referral hospital. Patient demographics, viral spectra, and microbiological co-infections were assessed. Between 2010 and 2025, we identified 9954 PCR assays from 2892 patients, with 482 samples testing positive for herpesvirus. HSV-1 was the most frequent pathogen (328 of 3358, 9.8%), followed by VZV (143 of 3112, 4.6%), HSV-2 (9 of 3290, 0.27%), and CMV (2 of 194, 1.0%). Triplet testing (simultaneous HSV-1, HSV-2, and VZV-PCR) enabled direct comparisons of relative incidence rates. We found 2913 triplet testing results, with a relative distribution in positive results of 65.4% for HSV-1, 32.5% for VZV, and 2.1% for HSV-2. HSV-1 keratitis had a statistically significant higher incidence in men (58.9%, p = 0.0044), while no sex difference was detected for VZV (47.9%, p = 0.6683), HSV-2 (33.3%, p = 0.5078), or CMV (100%, p = 0.500). Bilateral infections were present in two patients, and co-infections were detected as follows: 8 cases of HSV-1/VZV co-detection, 3 cases of Acanthamoeba, and 15 of fungi. HSV-1 was the overwhelmingly dominant cause of herpetic keratitis at our institution, occurring more than twice as frequently as VZV and vastly outnumbering HSV-2. The statistically significant higher incidence in men in HSV-1 keratitis suggests possible biological or sociodemographic influences, whereas co-infections highlight the complexity of corneal pathology in a referral setting. These findings underscore the importance of multiplex PCR testing for accurate pathogen detection and provide insights into the epidemiologic landscape of herpetic keratitis. Full article
(This article belongs to the Special Issue Ocular Microorganisms)
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13 pages, 548 KB  
Review
A Clinician’s Update on Infection Risk in Patients Receiving Biologic and Targeted Synthetic DMARDs for Autoimmune Disease
by Hilal Abdessamad
Rheumato 2026, 6(1), 4; https://doi.org/10.3390/rheumato6010004 - 22 Jan 2026
Cited by 1 | Viewed by 1567
Abstract
Background: Immunomodulatory therapies, including biologic and targeted synthetic disease-modifying antirheumatic drugs (DMARDs) have reshaped the treatment of autoimmune diseases. They alter host defenses, but the current landscape of associated infectious risk is not fully defined. Objective: A scoping review of recent [...] Read more.
Background: Immunomodulatory therapies, including biologic and targeted synthetic disease-modifying antirheumatic drugs (DMARDs) have reshaped the treatment of autoimmune diseases. They alter host defenses, but the current landscape of associated infectious risk is not fully defined. Objective: A scoping review of recent literature was conducted to characterize infectious complications associated with modern immunomodulatory biologic agents, summarize current pathogen patterns, and highlight recommendations for prevention and early recognition in clinical practice. Methods: Following PRISMA-ScR guidelines, a systematic search was performed on Scopus, Science Direct, and PubMed for studies published since 2023. Inclusion criteria focused on adult human subjects, exposure to immunomodulatory therapy, and reported infectious outcomes. Studies focusing exclusively on antineoplastic agents without established use in autoimmune diseases were excluded. After screening 1046 unique records, 16 studies were included in the final review. Findings: High-dose glucocorticoids remain a primary driver of serious infections across autoimmune diseases. Newer agents present mechanism-specific risk profiles. JAK inhibitors are associated with herpes zoster, while TNF-α inhibitors are linked to opportunistic bacterial infections and reactivation of granulomatous infections. B-cell depletion with rituximab correlates with hypogammaglobulinemia and its associated infections, whereas belimumab may offer a lower infection risk in non-renal SLE. Recent post hoc analyses (2023–2025) quantify the elevated risk of herpes zoster with JAK inhibitors compared to TNF inhibitors, particularly in older populations. Conclusions: The infectious risk associated with biologic and targeted DMARDs varies by mechanism. While glucocorticoids remain a primary driver of serious infections, newer data highlights specific vulnerabilities with JAK inhibitors (herpes zoster) and B-cell depletion (hypogammaglobulinemia) that require targeted risk stratification. This review shows the urgent need for individualized risk stratification, targeted prophylaxis (e.g., for Pneumocystis or zoster), and pre-therapy screening to balance therapeutic efficacy with patient safety. Full article
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21 pages, 583 KB  
Article
Beyond the Virological Benefits of the Herpes Zoster Vaccine in the Context of Primary Care
by Carlo Fabris, Lorena De Cecco Beolchi, Lucia Casatta, Stefano Celotto, Marina Pellegrini, Serafina Lovascio, Katia Urli and Pierluigi Toniutto
Vaccines 2026, 14(1), 79; https://doi.org/10.3390/vaccines14010079 - 11 Jan 2026
Viewed by 987
Abstract
Background/Objectives: Recently, the Herpes Zoster (HZ) vaccination has been introduced, alongside influenza and pneumococcal vaccination, at age 65. Factors influencing adherence to this vaccination and its clinical benefits are not completely understood. The aim of this study was to evaluate factors influencing [...] Read more.
Background/Objectives: Recently, the Herpes Zoster (HZ) vaccination has been introduced, alongside influenza and pneumococcal vaccination, at age 65. Factors influencing adherence to this vaccination and its clinical benefits are not completely understood. The aim of this study was to evaluate factors influencing adherence to HZ vaccination compared to pneumococcal and influenza and to assess its clinical effect in preventing acute vascular events. Methods: A total of 1152 patients (520 males), having a birth cohort from 1952 to 1959 inclusive, was recruited, belonging to the District of Udine (N = 839) and to the ASAPs 2 and 3 of Pordenone (N = 313). For each patient, a form was compiled. Results: HZ vaccination was administered to 498 patients, influenza to 665, and pneumococcal to 742 (p < 0.0001). Among the vaccinated, 266 received the live-attenuated version, and 232 the recombinant HZ vaccine. In logistic regression, the presence of addictions, low educational level, and poor socioeconomic status were strongly associated with lower vaccine adherence. The presence of chronic diseases enhanced only pneumococcal (p < 0.001) and influenza (p < 0.001) vaccine adherence. Forty-two non-fatal acute vascular events were recorded from age 65 onwards: 14 cardiac, 20 cerebrovascular, and 8 peripheric. Only 6/493 patients experienced an event following HZ vaccination compared to 36/659 unvaccinated subjects (p = 0.0003). In Cox modeling, HZ vaccination proved to be an independent predictor in preventing subsequent acute vascular events (p < 0.001). Conclusions: The presence of pathologies does not enhance adherence to HZ vaccination while an unfavorable socio-environmental context greatly hinders it. HZ vaccination, but not influenza and pneumococcal vaccination, appears to protect against the occurrence of acute vascular events. Full article
(This article belongs to the Section Vaccines and Public Health)
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21 pages, 1561 KB  
Article
Predictors of Severe Herpes Zoster: Contributions of Immunosenescence, Metabolic Risk, and Lifestyle Behaviors
by Mariana Lupoae, Fănică Bălănescu, Caterina Nela Dumitru, Aurel Nechita, Mădălina Nicoleta Matei, Simona Claudia Ștefan, Alin Laurențiu Tatu, Elena Niculet, Alina Oana Dumitru, Andreea Lupoae and Dana Tutunaru
Diseases 2026, 14(1), 26; https://doi.org/10.3390/diseases14010026 - 8 Jan 2026
Viewed by 740
Abstract
Background: Herpes zoster (HZ) represents a substantial public health concern among aging populations, yet regional variability in clinical patterns and risk determinants remains insufficiently documented. In southeastern Romania, epidemiological data are limited, and the combined influence of demographic, behavioral, and metabolic factors on [...] Read more.
Background: Herpes zoster (HZ) represents a substantial public health concern among aging populations, yet regional variability in clinical patterns and risk determinants remains insufficiently documented. In southeastern Romania, epidemiological data are limited, and the combined influence of demographic, behavioral, and metabolic factors on disease severity has not been systematically evaluated. Methods: We performed a retrospective observational study including 100 consecutive patients diagnosed with HZ between 2019 and 2023 in a dermatology department in southeastern Romania. Demographic characteristics, lifestyle behaviors, anthropometric status, clinical manifestations, and outcomes were extracted from medical records. Associations between categorical variables were assessed using Chi-square tests and Cramer’s V, while interaction patterns were explored through log-linear modeling. Heatmaps were generated in Python (version 3.10) using the Matplotlib library (version 3.7.1) to visualize distribution patterns and subgroup relationships. Results: The cohort showed a marked age dependence, with 77% of cases occurring in individuals ≥ 60 years, consistent with immunosenescence-driven reactivation. Women represented 59% of cases, and 84.7% of female patients were postmenopausal. Urban residents predominated (91%). Vesicular eruption (84%) and acute pain (79%) were the most frequent symptoms. Localized HZ was observed in 81% of cases, while ophthalmic involvement (11%) and disseminated forms (8%) were less common. Lifestyle factors significantly influenced clinical severity: smokers, alcohol consumers, and sedentary individuals exhibited higher proportions of postherpetic neuralgia (PHN) and ocular complications (p < 0.001). Overweight and obese patients demonstrated a higher burden of PHN, suggesting a role for metabolic inflammation, although BMI was not associated with incidence. No significant association between age category and complication type was detected, likely due to small subgroup sizes despite a clear descriptive trend toward increased severity with advanced age. Conclusions: These findings support a multifactorial model of HZ severity in southeastern Romania, shaped by age, lifestyle behaviors, hormonal status, and metabolic risk. While incidence patterns align with international data, the strong impact of modifiable factors on complication rates highlights the need for targeted prevention and individualized risk assessment. Results offer a regional perspective that may inform future multicenter investigations. Full article
(This article belongs to the Section Infectious Disease)
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17 pages, 1961 KB  
Article
Nanoparticle Vaccines Based on the Truncated VZV gE Elicit a Robust Immune Response in Mice
by Tianxin Shi, Hai Li, Jiehui Wu, Hongqiao Hu, Jie Jiang, Ruichen Wang, Ziyi Li, Qianqian Cui, Shihong Fu, Kai Nie, Fan Li, Qikai Yin, Huanyu Wang and Songtao Xu
Vaccines 2026, 14(1), 69; https://doi.org/10.3390/vaccines14010069 - 7 Jan 2026
Cited by 1 | Viewed by 927
Abstract
Background: Herpes zoster (HZ), caused by the reactivation of varicella-zoster virus (VZV), primarily affects elderly populations worldwide. Although current recombinant HZ vaccines show strong immunogenicity, their high cost and potential side effects may limit their widespread use. Therefore, developing a cost-effective HZ vaccine [...] Read more.
Background: Herpes zoster (HZ), caused by the reactivation of varicella-zoster virus (VZV), primarily affects elderly populations worldwide. Although current recombinant HZ vaccines show strong immunogenicity, their high cost and potential side effects may limit their widespread use. Therefore, developing a cost-effective HZ vaccine with improved safety profiles would have significant clinical and public health implications. Methods: Building upon our previously optimized truncated gE (tgE350) from VZV, we developed the tgE350 + Fe nanoparticle vaccine using SpyTag/SpyCatcher covalent conjugation. The tgE350 protein (with a SpyTag tag) and the Fe protein (with a SpyCatcher tag) were expressed in HEK293F and E. coli BL21, respectively, enabling spontaneous nanoparticle assembly. Protein expression and nanoparticle formation were confirmed through SDS-PAGE and negative-stain electron microscopy. BALB/c mice were inoculated with either tgE350 + Fe or tgE350 combined with Al and CpG adjuvants. Immune responses were evaluated using ELISpot and flow cytometry for cellular immunity, along with ELISA, VZV microneutralization, and fluorescent antibody membrane antigen (FAMA) assays for antibody titers. Histopathological examination of major organs ensured vaccine safety. Results: Compared with the truncated vaccine tgE350, the nanoparticle vaccine tgE350 + Fe significantly enhanced VZV neutralizing antibodies and specific antibody responses in mice without causing significant changes in lymphocyte populations (no difference from the control group). Moreover, the tgE350 + Fe group had significantly more lymphocytes secreting IFN-γ, IL-2, and IL-4 than the tgE350 group. No apparent pathological damage was observed in the heart, liver, spleen, or lungs of mice in any experimental group. Conclusions: This experiment successfully developed the HZ nanoparticle vaccine tgE350 + Fe. It enhanced VZV-specific neutralizing antibodies, generated better cellular and humoral immune responses, and demonstrated good safety. Full article
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11 pages, 352 KB  
Article
The Use of CSF Multiplex PCR Panel in Patients with Viral Uveitis
by Young Hwan Jeong, Su Hwan Park, Seung Min Lee, Iksoo Byon, Jongyoun Yi and Sung-Who Park
Diagnostics 2026, 16(1), 143; https://doi.org/10.3390/diagnostics16010143 - 1 Jan 2026
Viewed by 689
Abstract
Background/Objectives: Polymerase chain reaction (PCR) testing of ocular fluids is an essential diagnostic method for identifying infectious causes of uveitis. However, multiplex PCR kits specifically developed for ophthalmic use are not commercially available in many regions, including Korea. Given the biochemical similarity [...] Read more.
Background/Objectives: Polymerase chain reaction (PCR) testing of ocular fluids is an essential diagnostic method for identifying infectious causes of uveitis. However, multiplex PCR kits specifically developed for ophthalmic use are not commercially available in many regions, including Korea. Given the biochemical similarity between cerebrospinal fluid (CSF) and aqueous humor, this study evaluated the diagnostic utility of a commercially available CSF multiplex PCR panel for detecting herpesviruses in patients with suspected viral uveitis. Methods: We retrospectively reviewed the medical records of patients whose aqueous humor samples were analyzed using a multiplex PCR assay originally designed for CSF testing (Seeplex Meningitis-V1 ACE Detection kit, Seegene, Seoul, Republic of Korea). The samples were obtained between May 2019 and June 2023 at two tertiary referral hospitals. The assay targeted herpes simplex virus types 1 and 2 (HSV-1, HSV-2), varicella-zoster virus (VZV), cytomegalovirus (CMV), Epstein–Barr virus (EBV), and human herpesvirus 6 (HHV-6). Patients were classified into three groups: (I) anterior uveitis with suspected herpesviral infection, (II) acute retinal necrosis (ARN), and (III) CMV retinitis. Baseline characteristics, PCR positivity rates, and virus prevalence were compared among the groups. Results: Among 149 eyes tested, 86 were included in the final analysis. The overall positivity rate was 38.4%. PCR positivity was 19.7% (12/61) in Group I, 93.8% (15/16) in Group II, and 66.7% (6/9) in Group III. CMV was the most common pathogen in Groups I (66.7%) and III (100%), while VZV was predominant in Group II (80%). No HHV-6 infection was detected. Conclusions: The positivity rate in anterior uveitis (Group I) was lower than previously reported, likely due to the limited sample volume relative to the assay’s requirement. Nevertheless, the assay demonstrated diagnostic reliability comparable to previous reports for ARN and CMV retinitis. Therefore, the CSF-based multiplex PCR panel serves as a feasible and cost-effective diagnostic option for sight-threatening posterior segment infections, facilitating prompt diagnosis and treatment, although further optimization is warranted for anterior uveitis. Full article
(This article belongs to the Special Issue Innovative Diagnostic Approaches in Retinal Diseases)
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