“It is now around a year since many New Zealanders received their last Covid-19 vaccine. A large proportion of the population has since been infected by the virus, providing a natural boost to immunity albeit by an unwelcome route. However, there is probably still at least half the population whose last vaccine dose or infection was more than six months ago.
This is a companion discussion topic for the original entry at https://www.sciencemediacentre.co.nz/2023/01/19/does-nz-need-a-bivalent-booster-expert-reaction/?utm_source=rss&utm_medium=rss&utm_campaign=does-nz-need-a-bivalent-booster-expert-reaction