Author:
Marcato Adrian,Fielding James,Crooks Kristy,Massey Peter,Le Linh-Vi,Bergeri Isabel,McVernon Jodie
Abstract
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.
Publisher
World Health Organization, Western Pacific Regional Office
Cited by
4 articles.
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