Influenza vaccination in tropical regions: considerations for Venezuela 2025

Authors

  • Alejandro Rísquez Parra Cátedra de Salud Pública, Escuela de Medicina “Luiz Razetti”, Universidad Central de Venezuela. Caracas, Venezuela

DOI:

https://doi.org/10.37910/RDP.2025.14.2.e423

Keywords:

Influenza vaccines, Tropical regions, Highrisk groups, Recommended strains, Disease prevention

Abstract

The World Health Organization (WHO) annually updates the composition of influenza vaccines for the northern and southern hemispheres based on findings from global reference laboratories. In tropical regions, vaccination is recommended year-round due to the continuous circulation of the virus and the increase in cases at the beginning of the rainy season. Annual vaccination is essential, especially for high-risk groups such as children, the elderly, pregnant women, healthcare workers, and people with chronic diseases. In Venezuela, the available vaccines are egg-based, with greater distribution of those from the southern hemisphere. The recommended strains for 2025 include A/Victoria/4897/2022 (H1N1) pdm09, A/Croatia/10136RV/2023 (H3N2), and B/Austria/1359417/2021 (lineage B/Victoria). Influenza vaccination reduces the risk of infection, hospitalization, and severe complications, and also offers community protection

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References

1. Comité Asesor de Vacunas e Inmunizaciones, Asociación Española de Pediatría (CAV-AEP). Gripe. Manual de inmunizaciones en línea de la AEP [Internet]. Madrid: AEP; mayo 2025 [consultado 2025 May 25]. Disponible en: https://vacunasaep.org/documentos/manual/cap-26

2. Levy M J, Carrizo Ch J T, Betancourt A, De Izaguirre J, Rísquez A, Sileo E, et al. Sociedad Venezolana de Puericultura y Pediatría. Esquema de inmunización para niños y adolescentes de Venezuela. Caracas: SVPP; junio 2024. Disponible en: https://svpediatria.org/secciones/publicaciones/esquema-de-inmunizacion/

3. Organización Mundial de la Salud. Recomendaciones sobre la composición vírica de las vacunas antigripales para la temporada gripal de 2025 en el hemisferio sur. Ginebra: OMS; 2024. Disponible en: https://www.who.int/es/news/item/27-09-2024-recommendations-announced-for-influenza-vaccinecomposition-for-the-2025-southern-hemisphere-influenza-season

4. Organización Mundial de la Salud. Anuncio de las recomendaciones sobre la composición de la vacuna antigripal para la temporada gripal 2024-2025 en el hemisferio norte [Internet]. Ginebra: OMS; 2024 [citado 2025 May 19]. Disponible en: https://www.who.int/es/news/item/23-02-2024-recommendationsannounced-for-influenza-vaccine-composition-for-the-2024-2025-northern-hemisphere-influenza-season

Published

2025-08-21

How to Cite

Rísquez Parra, A. (2025). Influenza vaccination in tropical regions: considerations for Venezuela 2025. Revista Digital De Postgrado, 14(2), e423. https://doi.org/10.37910/RDP.2025.14.2.e423

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