First few ‘X’ (FFX) studies for COVID-19 involve data collection from confirmed cases and their close contacts. They remain relevant especially as many remain susceptible to infection, and as they can provide detailed insight into vaccine effectiveness and the epidemiology of variants of concern, helping to inform a proportionate health response.
|Number of pages||3|
|Journal||Western Pacific surveillance and response journal : WPSAR|
|Publication status||Published - 24 Mar 2022|