Due to the Evolving Nature of #influenza Viruses, the Flu Vaccine Composition Needs to Be ... - Latest Tweet by World Health Organization

Due to the evolving nature of #influenza viruses, the flu vaccine composition needs to be updated periodically.
Twice a year, WHO brings together experts to analyse influenza virus surveillance data generated by the Global Influenza Surveillance and Response System— World Health Organization (WHO) (@WHO) February 25, 2022

(SocialLY brings you all the latest breaking news, fact checks and information from social media world, including Twitter (X), Instagram and Youtube. The above post contains publicly available embedded media, directly from the user's social media account and the views appearing in the social media post do not reflect the opinions of LatestLY.)