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Microorganisms publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Viral Diseases: Current Research and Future Directions, Second Edition

edited by

Sherif T.S. Hassan

submission deadline 31 Aug 2026 | Viewed by 197 | Submission Open

Keywords: RNA viruses; DNA viruses; virus– host interactions; immune evasion strategies; host immune response; viral epidemiology; biology and pathogenesis; virus diagnosis; viral diseases; prevention; management and treatment strategies; antiviral therapeutics; vaccine development

(This special issue belongs to the Section Virology)

Molecular Mechanisms of Mammalian Intra-Amniotic Infection

edited by Matthew Jackson and Kevin Theis

submission deadline 31 Aug 2026 | Viewed by 195 | Submission Open

Keywords: intra-amniotic infections; microbes; pathogenic mechanisms

(This special issue belongs to the Section Molecular Microbiology and Immunology)

Probiotics, Live Biotherapeutic Products (LBPs) and Postbiotics: Insights into Host–Microbe Interactions

edited by

Yung-Tsung Chen

and

Yen-Po Chen

submission deadline 31 Aug 2026 | Viewed by 190 | Submission Open

Keywords: host– microbe interaction; probiotics; live biotherapeutic products (LBPs); postbiotics; gut microbiota; immunomodulation; gut– brain axis; molecular mechanisms; metabolic regulation

(This special issue belongs to the Section Gut Microbiota)

State-of-the-Art Medical Microbiology in Australia (2026, 2027)

edited by

Aiken Dao

submission deadline 31 Aug 2026 | Viewed by 189 | Submission Open

Keywords: medical microbiology; antimicrobial resistance; clinical microbiology and diagnostics; microbial genomics and surveillance; infection prevention and control; translational infectious diseases research; pathogens; host– pathogen interactions; microbiome research; antimicrobial stewardship

(This special issue belongs to the Section Medical Microbiology)

State-of-the-Art Plant Microbe Interactions in South Korea (2025, 2026)

edited by

Taegun Seo

submission deadline 31 Aug 2026 | Viewed by 186 | Submission Open

Keywords: disease protection; endophytes; endosymbiosis; epiphytes; lichens; mycorrhizae; nitrogen fixation; pathogens; pathogenesis; phosphate solubilization; rhizobacteria; rhizophagy cycle; stress tolerance; symbiosis

(This special issue belongs to the Section Plant Microbe Interactions)

Microbiomes and Host Health: The Importance of Host Self-Completion with Microbiota

edited by

Rodney R. Dietert

submission deadline 31 Aug 2026 | Viewed by 185 | Submission Open

Keywords: chronic disease; colonization resistance; pathogens; and infections; systems biology; metabolism; physiology; and function; microbiome-first health; microbiota; microbial dysbiosis; life stages; domestic; agricultural; and environmental species; microbiome-toxic drugs and chemicals

(This special issue belongs to the Section Microbiomes)

Research on Diseases of Aquatic Organisms, Second Edition

edited by

Guilherme Tavares

submission deadline 31 Aug 2026 | Viewed by 162 | Submission Open

Keywords: conservation and welfare of aquatic animals; ecotoxicology of aquatic environments; amphibian health and diseases; crustacean health and diseases; fish health and diseases; health and diseases of bivalve mollusks; health and diseases of other aquatic animals

(This special issue belongs to the Section Veterinary Microbiology)

Microbiome as Drivers of Environmental Resilience and Human Well-Being

edited by

Elisa Bona

submission deadline 31 Aug 2026 | Viewed by 157 | Submission Open

Keywords: environmental microbiota; plant– microbiota– soil interactions; human and animal microbiota; antimicrobial resistance

(This special issue belongs to the Section Environmental Microbiology)

Recent Advances in Physiology and Metabolism of Lactobacilli: Potential Applications in Sustainable Agri-Food System

edited by

Teresa Zotta

and Marilisa Giavalisco

submission deadline 31 Aug 2026 | Viewed by 144 | Submission Open

Keywords: lactobacilli; metabolism; food ingredients; biopolymers; sustainability; agri-food wastes

(This special issue belongs to the Section Food Microbiology)

Antibiotic Resistance and Virulence of Streptococcus pneumoniae

edited by Marina Panǎ

submission deadline 31 Aug 2026 | Viewed by 143 | Submission Open

Keywords: Streptococcus pneumoniae; virulence factors; increasing resistance to antibiotics; immunization; novel strategies

(This special issue belongs to the Section Medical Microbiology)

Viral Immunology in an Unequal World: Bridging Disparities from Mechanisms to Populations

edited by

Yiu Wing (Jason) Kam

submission deadline 31 Aug 2026 | Viewed by 134 | Submission Open

Keywords: viral immunology; global health equity; low- and middle-income countries (LMICs); host– pathogen interactions; health disparities

(This special issue belongs to the Section Virology)

Antimicrobial Resistance and Healthcare-Associated Infections: Epidemiology and Implementation of Global Strategies

edited by

Ulf Reidar Dahle

and Belinda Farias Nicolau

submission deadline 31 Aug 2026 | Viewed by 129 | Submission Open

Keywords: antimicrobial resistance; healthcare-associated infections; epidemiology; infection prevention and control; surveillance; implementation science; antimicrobial stewardship; global health; health systems; public health policy

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Biotechnological Advances in Cold-Adapted Marine Microorganisms

edited by

Ermenegilda Parrilli

and

Concetta Lauro

submission deadline 31 Aug 2026 | Viewed by 129 | Submission Open

Keywords: cold-adapted microorganisms; extremophiles; polar microbiology; marine biotechnology; cold-active enzymes; bioprospecting; secondary metabolites; environmental adaptation; marine natural products

Water Microorganisms Associated with Human Health, 3rd Edition

edited by

Ana Machado

submission deadline 31 Aug 2026 | Viewed by 119 | Submission Open

Keywords: drinking water; recreational water; microorganisms; biomarkers; emerging contaminants; risk assessment; waterborne diseases; one health

(This special issue belongs to the Section Public Health Microbiology)

Antimicrobial Resistance (AMR) and One-Health Perspectives of Campylobacter

edited by Rhiannon Wallace

submission deadline 31 Aug 2026 | Viewed by 116 | Submission Open

Keywords: antimicrobial resistance; Campylobacter; One-Health; resistome; whole-genome sequencing

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Diagnosis, Treatment and Epidemiology of Zoonotic Infections

edited by

Ana Alexandra Ardelean

and

Tudor Rares Olariu

submission deadline 31 Aug 2026 | Viewed by 112 | Submission Open

Keywords: parasitic diseases; fungal infections; microbiology; risk factors; surveillance; emerging diseases; epidemiology; water-borne zoonoses; vector-borne zoonoses

(This special issue belongs to the Section Veterinary Microbiology)

Clinical Research on Fungal Infections

edited by

Geetha Sivasubramanian

and

Fariba Donovan

submission deadline 31 Aug 2026 | Viewed by 111 | Submission Open

Keywords: fungal infections; medical mycology; Candida; Aspergillus; Cryptococcus; Mucorales; endemic mycoses; invasive fungal disease; antifungal therapy; antifungal resistance

(This special issue belongs to the Section Medical Microbiology)

State-of-the-Art ''Microbial Biotechnology'' in China (2026, 2027)

edited by Shoushuai Feng

submission deadline 31 Aug 2026 | Viewed by 105 | Submission Open

Keywords: microbial biotechnology; extremophile application; synthetic biology; microbial agent; bioprocesses and bioreactors; industrial microbiology; bioresource utilization; biofuels and bioproducts; environmental sustainability; bioremediation and waste recycle

(This special issue belongs to the Section Microbial Biotechnology)

Advances in Pathogenic Infections in Aquatic Animals

edited by

Denise Schrama

submission deadline 31 Aug 2026 | Viewed by 96 | Submission Open

Keywords: aquaculture; pathogens; fish nutrition; microbiology; fish health; sustainability; microorganisms; microbiota; stress; immune response

(This special issue belongs to the Section Veterinary Microbiology)

Antimicrobial Resistance and Multidrug-Resistant Bacteria in Infectious Patients (2026)

edited by

Danila de Vito

, Patrizia Nardulli and Mariarita Laforgia

submission deadline 31 Aug 2026 | Viewed by 95 | Submission Open

Keywords: diffusion multi-drug resistant bacteria; outbreak by ESKAPE bacteria; hospital infections; care-related infections; anti-microbial nano-particles; role of antimicrobial nanomaterials in medicine; mechanism of action of antimicrobial nanomaterials; antimicrobial food packaging

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Host-Pathogen Interactions, Molecular Keys, from ncRNA’s to Resistance Genes

edited by

Cristopher Segovia

submission deadline 31 Aug 2026 | Viewed by 93 | Submission Open

Keywords: host– pathogen; regulatory ncRNAs; resistance genes; bioinformatics; biotechnology

(This special issue belongs to the Section Molecular Microbiology and Immunology)

The Infective Endocarditis (2nd Edition)

edited by

José María Miró

and

Guillermo Cuervo

submission deadline 31 Aug 2026 | Viewed by 93 | Submission Open

Keywords: infective endocarditis (IE); native valve endocarditis; TAVI endocarditis; prosthetic valve endocarditis; staphylococcal endocarditis; enterococcal endocarditis; molecular biology diagnosis; cardiac PET/CT diagnosis; vascular graft infections; LVAD infections; endocarditis in the elderly; endocarditis in PWID; oral antimicrobial treatment of IE; outpatient parenteral antibiotic therapy (OPAT) for IE; cardiac surgery of IE; cardiovascular infections; cardiac implantable electronic device (CIED)-IE; trial design of infective endocarditis; chronic antibiotic suppressive therapy for cardiovascular infections

(This special issue belongs to the Section Medical Microbiology)

Advances in Microbial Cell Factories, 4th Edition

edited by

Thomas Brück

and

Dania Awad

submission deadline 31 Aug 2026 | Viewed by 84 | Submission Open

Keywords: sustainability; biotechnology; bioengineering; biocatalysis; fermentation

(This special issue belongs to the Section Microbial Biotechnology)

Research on Microbial Diversity and Antibiotic Resistance in Wastewater

edited by

Gladys Vidal

and Benjamin Pina

submission deadline 31 Aug 2026 | Viewed by 82 | Submission Open

Keywords: wastewater treatment; antimicrobials; antibiotic resistance genes (ARGs); antibiotic-resistant bacteria (ARB); technology; environmental impact; sludge disposal; effluent reuse; human health

(This special issue belongs to the Section Environmental Microbiology)

Viral Diseases in Veterinary

edited by Adrian Valentin Potârniche

submission deadline 31 Aug 2026 | Viewed by 79 | Submission Open

Keywords: viral diseases; veterinary; host– pathogen interactions; epidemiology; diagnostic; antiviral immunity; disease surveillance; One Health; vaccine development

(This special issue belongs to the Section Veterinary Microbiology)

Advances in Human Infections and Public Health: 2nd Edition

edited by Katrin Gaardbo Kuhn

submission deadline 31 Aug 2026 | Viewed by 79 | Submission Open

Keywords: human infections; public health; advances; preparedness; control; prevention

(This special issue belongs to the Section Public Health Microbiology)

Microbial Safety and Molecular Detection in Food Production and Processing

edited by

Julio Parra-Flores

submission deadline 15 Sep 2026 | 1 articles | Viewed by 1056 | Submission Open

Keywords: microbiological quality of foods; pathogens and opportunistic foodborne pathogens; molecular epidemiology of foodborne illness; molecular characterization of foodborne pathogens; biofilm; sanitizers; and control of pathogens in food production plants; virulence factors; antibiotic resistance

(This special issue belongs to the Section Food Microbiology)

Bacterial Infections and Antibiotic Resistance in Veterinary Medicine, 2nd Edition

edited by

Andrea Micke Moreno

and

Luisa Zanolli Moreno

submission deadline 30 Sep 2026 | 5 articles | Viewed by 7225 | Submission Open

Keywords: veterinary microbiology; bacterial infection; One Health; antimicrobial resistance

(This special issue belongs to the Section Veterinary Microbiology)

Microbial Dynamics in Desert Ecosystems

edited by

Xiaoying Rong

submission deadline 30 Sep 2026 | 4 articles | Viewed by 5385 | Submission Open

Keywords: microbial diversity; drought; arid and semiarid regions; adaptation; functional regulation

(This special issue belongs to the Section Environmental Microbiology)

From Sewers to Solutions: Wastewater Surveillance in the Fight Against Antimicrobial Resistance

edited by Mohamed M. H. Abdelbary,

Guido Werner

and Kazunari Sei

submission deadline 30 Sep 2026 | 4 articles | Viewed by 4838 | Submission Open

Keywords: AMR pathogens in wastewater; carbapenem-resistant enterobacterales; wastewater resistome; culture-based detection; molecular methodologies for pathogens detection; digital PCR; hospital and urban Wastewater; wastewater microbiome; mobile genetic elements; AMR plasmids

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Microorganisms in Neglected Tropical Diseases

edited by Ana Abreu-Silva and

Fernando Almeida-Souza

submission deadline 30 Sep 2026 | 1 articles | Viewed by 4417 | Submission Open

Keywords: malaria; Chagas disease; dengue; chikungunya; zika; human African trypanosomiasis; leishmaniasis; leprosy; Hansen disease; lymphatic filariasis; sporotrichosis; rabies; schistosomiasis; trachoma

(This special issue belongs to the Section Public Health Microbiology)

Oral Microbiomes and Host Health

edited by

Lucinda J. Bessa

submission deadline 30 Sep 2026 | 3 articles | Viewed by 4345 | Submission Open

Keywords: oral microbiome; oral diseases; systemic diseases; dysbiosis; host– microbe interactions; microbial biomarkers

(This special issue belongs to the Section Microbiomes)

Genomics of Marine and Aquatic Bacteria: A Focus on Novel Taxa, Diversity and Biotechnological Potential, 3rd Edition

edited by

Alexander Machado Cardoso

and

Marina Isaeva

submission deadline 30 Sep 2026 | 4 articles | Viewed by 4264 | Submission Open

Keywords: bacteria; diversity; bacterial communities; novel taxa; phylogeny; genome analysis; marine and aquatic environments

(This special issue belongs to the Section Environmental Microbiology)

Gut Microbes and Probiotics

edited by

Runan Zhao

Wenjun Wang

and

Yini Liu

submission deadline 30 Sep 2026 | 5 articles | Viewed by 4189 | Submission Open

Keywords: gut microbe; probiotics; host– microbe interactions; microbiome-based interventions; microencapsulation; targeted delivery system

(This special issue belongs to the Section Gut Microbiota)

Advances in Microbial Surfactants: Production and Applications (2nd Edition)

edited by

Marcia Nitschke

and

Xanel Vecino

submission deadline 30 Sep 2026 | 2 articles | Viewed by 3414 | Submission Open

Keywords: biosurfactants; agroindustrial wastes; antimicrobial activity; bioremediation; biofilm; nanotechnology; glycolipid; lipopeptide

(This special issue belongs to the Section Microbial Biotechnology)

Plant Pathogens: Monitoring, Identification and Biological Control, 2nd Edition

edited by

Damir Dermic

Stefania Tegli

and

Sara Godena

submission deadline 30 Sep 2026 | 3 articles | Viewed by 3131 | Submission Open

Keywords: plant pathology; biological control; plant protection

(This special issue belongs to the Section Plant Microbe Interactions)

Combating Antimicrobial Resistance: Innovations and Strategies, Second Edition

edited by

Vasiliki Koumaki

submission deadline 30 Sep 2026 | 3 articles | Viewed by 2476 | Submission Open

Keywords: antimicrobial agents; antimicrobial resistance; antimicrobial stewardship

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Microbial Safety of Animal-Derived Foods

edited by

Etna Aída Peña-Ramos

and

Martín Valenzuela-Melendres

submission deadline 30 Sep 2026 | 2 articles | Viewed by 2281 | Submission Open

Keywords: animal-derived foods; foodborne illness; microbial safety

(This special issue belongs to the Section Food Microbiology)

Antibiotic Resistance and Alternatives

edited by Emil Tîrziu and

Iulia Maria Bucur

submission deadline 30 Sep 2026 | 1 articles | Viewed by 2099 | Submission Open

Keywords: antimicrobial resistance; MDR; XDR; resistance genes; alternative therapy; new antimicrobials

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Advances in Aquaculture and Microorganisms

edited by

Dariano Krummenauer

and

Otávio Pimentel

submission deadline 30 Sep 2026 | 1 articles | Viewed by 1839 | Submission Open

Keywords: recirculating aquaculture systems; nitrifying bacteria; microbial community composition; water quality control; probiotic microorganisms; synbiotic aquaculture system; biofloc technologic system; integrated multitrophic aquaculture

(This special issue belongs to the Section Veterinary Microbiology)

Mycobacterium leprae, Mycobacterium lepromatosis and Leprosy Studies

edited by Cleverson Teixeira Soares, Patrícia Sammarco Rosa and Bruno de Carvalho Dornelas

submission deadline 30 Sep 2026 | 1 articles | Viewed by 1653 | Submission Open

Keywords: Mycobacterium; leprosy; therapeutic approaches; clinical studies

(This special issue belongs to the Section Medical Microbiology)

Pathogen Surveillance in Wastewater

edited by

Afsatou Ndama Traore

and

Natasha Potgieter

submission deadline 30 Sep 2026 | 2 articles | Viewed by 1437 | Submission Open

Keywords: microorganisms; wastewater; public safety

(This special issue belongs to the Section Public Health Microbiology)

Detection and Immunity of Avian Viruses

edited by Qiaoyang Teng,

Dawei Yan

and

Xue Pan

submission deadline 30 Sep 2026 | 1 articles | Viewed by 1089 | Submission Open

Keywords: avian viruses; detection techniques; immune response; poultry health; zoonotic pathogens; vaccine development; host genetics; diagnostic advances; viral evolution; disease control

(This special issue belongs to the Section Veterinary Microbiology)

Microbe–Host Interactions: Molecular Mechanisms and Applications

edited by Dahua Chen, Xiao Chu and Zheng-Fei Yan

submission deadline 30 Sep 2026 | 1 articles | Viewed by 1035 | Submission Open

Keywords: host-microbe crosstalk; microbe therapeutics; multi-omics integration

(This special issue belongs to the Section Molecular Microbiology and Immunology)

Advances in Rumen Microbiome Science: Emerging Technologies for Sustainable Livestock Production

edited by

Simone Peletto

and

Lorenzo Danilo Granados-Rivera

submission deadline 30 Sep 2026 | 1 articles | Viewed by 952 | Submission Open

Keywords: ruminal microbiome; metagenomics; methanogenesis; feed efficiency; multi-omics; host– microbe interactions; microbial ecology; rumen fermentation; climate mitigation; precision livestock

(This special issue belongs to the Section Veterinary Microbiology)

Yeast Metabolic Engineering and Fermentation Technology

edited by

Yongjun Wei

submission deadline 30 Sep 2026 | 1 articles | Viewed by 924 | Submission Open

Keywords: yeasts cell factories; metabolic engineering; synthetic biology; reprogramming; fermentation technology; multi-omics; machine learning; bioreactor engineering; engineering biotechnology; bioactive compounds

(This special issue belongs to the Section Microbial Biotechnology)

Advances in the Diagnosis and Treatment of Mycobacterial Infections

edited by Hung-Ling Huang

submission deadline 30 Sep 2026 | 1 articles | Viewed by 904 | Submission Open

Keywords: mycobacterial infection; tuberculosis; latent TB infection; nontuberculous mycobacterial infection; immunity; transmission; drug resistance

(This special issue belongs to the Section Medical Microbiology)

Diet, Microbiome, and Immune Function

edited by

Kurtis Budden

submission deadline 30 Sep 2026 | 1 articles | Viewed by 797 | Submission Open

Keywords: diet; nutrition; microbiome; immunity; inflammation; immunometabolism; infection; chronic disease

(This special issue belongs to the Section Microbiomes)

State-of-the-Art Advances of Medical Virology in Italy

edited by

Massimiliano Galdiero

Arnaldo Caruso

Enzo Tramontano

and

Guido Antonelli

submission deadline 30 Sep 2026 | 1 articles | Viewed by 673 | Submission Open

Keywords: virology; viral pathogenesis; viral entry; viral replication; antivirals; viral diseases; viral vaccines; viral immunology; virus-host interactions

(This special issue belongs to the Section Virology)

Advances in the Plant Microbiome: Rhizosphere, Endosphere and Phyllosphere, Second Edition

edited by