An employee works at a Sinovac Biotech facility, which is developing an experimental coronavirus vaccine, in Beijing in September. Photo: Reuters
Coronavirus: British study finds evidence of waning immunity over time
- Scientists at Imperial College London tracked antibody prevalence in UK population and found it fell by a quarter over three months
- Findings do not necessarily have implications for efficacy of vaccine candidates, as good vaccine could be better than natural immunity
An employee works at a Sinovac Biotech facility, which is developing an experimental coronavirus vaccine, in Beijing in September. Photo: Reuters