This document summarizes current WHO guidance for public health surveillance of coronavirus disease 2019 (COVID-19) in humans caused by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
New elements include:
- update of contact definitions, in line with latest contact tracing guidance
- update of detection strategies in line with updated version of WHO SARS-CoV-2 testing guidance
- reinfection evidence standardization and surveillance: molecular, genomic and immunological evidence of reinfection
- inclusion of clinical case definition of Post COVID-19 condition as defined by WHO
- definition of breakthrough infection
This version has been developed through a structured process of which the inception pre-dates the emergence of the variant of concern Omicron. It superseded the previous version released on 16 December 2020.
Entire content available on: https://www.who.int/publications/i/item/WHO-2019-nCoV-SurveillanceGuidance-2022.1
