Influenza viruses are important pathogens that can cause sporadic respiratory illness, annual epidemics, and, in the case of influenza A viruses, periodic pandemics. therefore, innovative and continued research is necessary to better understand the origin, provenance and causes, as well as the viral genome, the body’s immune response to infection, and the epidemiology of the virus to create adequate countermeasures.

Desafortunadamente, la influenza se multiplica constantemente y muta para engañar al sistema inmune. Su función principal es atacar a las células buenas del cuerpo. Después de que estas cepas se esparcen a través de la población, la vacuna se modifica para detener su avance.

The World Health Organization (WHO) collaborating centers are resposible for conducting research on influenza viruses circulating among humans in different countries throughout the world. This information is used by the WHO to make recommendations for which viruses should be part of the annual seasonal influenza vaccines for the northern and southern hemispheres.