Maintaining surveillance of influenza and monitoring SARS-CoV-2 – adapting Global Influenza surveillance and Response System (GISRS) and sentinel systems during the COVID-19 pandemic

Overview

This interim guidance is most useful for countries interested in monitoring relative circulations of influenza and SARS-CoV-2 viruses. The document provides practical information to maintain surveillance of influenza and monitor SARS-CoV-2 using existing surveillance systems. It contains updated considerations for addressing disruptions in the influenza sentinel surveillance and extending to include COVID-19 wherever possible. Updated algorithms for testing of both influenza and SARS-CoV-2 for surveillance are also included. This document is an update of Operational considerations for COVID-19 surveillance using GISRS and GISRS for the upcoming influenza seasons during the COVID-19 pandemic

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