The WHO has recommended dropping a component of many flu vaccines because the viruses it protects against appear to have been driven into extinction in the Covid pandemic.
The WHO has recommended dropping a component of many flu vaccines because the viruses it protects against appear to have been driven into extinction in the Covid pandemic.
And it didn’t just go extinct by luck. It’s a good case study of how to control and/or eliminate a virus (e.g. COVID):
“The rapid and global implementation of social distancing measures, masking, and the profound early reduction in international travel resulted in a substantial reduction in flu transmission.”