**4. Conclusions**

The "Understanding COVID" strategy was a public health campaign launched by the government of Asturias to improve the population's response and adaptation to the COVID-19 crisis and to combat pandemic fatigue and infodemia. The main innovation of the campaign was to target a population selected on the basis of vulnerability criteria, whose voices were taken into account to identify training topics. Capacity building was achieved through a variety of tailor-made methodologies, such as online activities, posters for hotels and catering establishments, educational quizzes and games for schools, social media presence, etc. More than 100 training activities were conducted for 21 subgroups of the vulnerable population, reaching more than 1000 people, as well as students from almost 1000 classrooms and users of various hospitality establishments and vulnerable populations. The strategy faced the challenge of reaching as many vulnerable people of different ages as possible while minimizing the technological gap, which was addressed by using technologies accessible to the population, such as tablets and smartphones, that did not require large technological features. The "Understanding COVID" strategy was well-received and reinforced the choice of dissemination and implementation method, making the information inclusive for the deaf and visually impaired population (with the

support of professional sign language translators and adaptations of audiovisual materials). The most participatory actions were those carried out in the school environment and in the hospitality sector, where educational activities were added to the online training sessions and posters were displayed in restaurants. The information campaign in the hospitality sector, "First Air Quality", allowed commercial establishments to display posters with recommendations for the public and to have a certificate of the training received, promoting confidence and safety among customers.

Overall, the collaboration between different government agencies with the ultimate goal of reaching the population most vulnerable to the COVID-19 pandemic is possible if a coordinated strategy is developed that takes into account the citizens and their interests and adapts to their different needs.

**Supplementary Materials:** The following supporting information can be downloaded at: https:// www.mdpi.com/article/10.3390/life13020589/s1, Figure S1: School material from the "*Bichos fuera*" (Bugs out!) campaign; Figure S2: "*Aire de Primera*"(First Quality Air) poster.

**Author Contributions:** Conceptualization, M.L.-V. and M.P.G.; methodology, M.P.G.; formal analysis, M.L.-V., M.P.G. and C.F.G.; writing—original draft preparation, M.L.-V., M.P.G., C.F.G. and A.L.; writing—review and editing M.L.-V., M.P.G., C.F.G., A.L., I.D.V., I.R.H., M.J.R.N., A.M.M.G., M.P., B.A. and O.Z.; supervision, M.P.G. and A.L. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Not applicable.

**Acknowledgments:** We thank Raquel Vázquez Álvarez and Laura González Lozano for their work in the design and implementation of the "Understanding COVID" strategy. We thank the Management Department of the Ministry of Health of Asturias (Sergio Vallés, Lidia Clara, Elena Llorente and Jose Antonio Altolaguierre) for supporting the "Understanding COVID" strategy. We thank Francisco Sánchez Refusta for his help in translating this article. We thank Tierra Voz Communication S.L. for its graphic support.

**Conflicts of Interest:** The authors declare no conflict of interest.
