Evaluation of influenza vaccine effectiveness and description of circulating strains in outpatient settings in South Africa, 2014

The effectiveness of the trivalent seasonal influenza vaccine during the 2014 season in South Africa was assessed using a test-negative case–control study design including 472 cases and 362 controls. Influenza A(H3N2) was the dominant strain circulating. The overall vaccine effectiveness estimate, a...

Descripción completa

Detalles Bibliográficos
Autores principales: McAnerney, Johanna M, Treurnicht, Florette, Walaza, Sibongile, Cohen, Adam L, Tempia, Stefano, Mtshali, Senzo, Buys, Amelia, Blumberg, Lucille, Cohen, Cheryl
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BlackWell Publishing Ltd 2015
Materias:
Short Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4474497/
https://www.ncbi.nlm.nih.gov/pubmed/25865249
http://dx.doi.org/10.1111/irv.12314
Descripción
Sumario:The effectiveness of the trivalent seasonal influenza vaccine during the 2014 season in South Africa was assessed using a test-negative case–control study design including 472 cases and 362 controls. Influenza A(H3N2) was the dominant strain circulating. The overall vaccine effectiveness estimate, adjusted for age and underlying conditions, was 43·1% (95% CI: −26·8–74·5). 2014 H3N2 viruses from South Africa were mainly in sublineage 3C.3 with accumulation of amino acid changes that differentiate them from the vaccine strain in 3C.1.

Ejemplares similares