Coronavirus disease (COVID-19) technical guidance: Surveillance and case definitions

Considerations in the investigation of cases and clusters of COVID-19

This document offers operational guidance to Member States for the rapid investigation of suspected COVID-19 cases after an alert or signal. It is a tool to be used by local, regional, or national health authorities that addresses considerations in investigating cases of COVID-19. 

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Global Surveillance for human infection with coronavirus disease (COVID-19) 

(Available in Arabic, Chinese, English, Portuguese)

This document provides guidance to Member States on implementation of global surveillance of COVID-19. The objectives of this global surveillance are:

  1. to monitor trends of the disease where human to human transmission occurs;
  2. rapidly detect new cases in countries where the virus is not circulating;
  3. provide epidemiological information to conduct risk assessments at the national, regional and global level; and
  4. provide epidemiological information to guide preparedness and response measures.

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The purpose of this document is to offer guidance to Member States on quarantine measures for individuals in the context of COVID-19. It is intended for those responsible for establishing local or national policy for quarantine of individuals, and adherence to infection prevention and control measures. 

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