Hospital Surveillance

A subset of countries and areas monitor severe disease related to influenza virus infection by surveillance of 


1) hospitalized laboratory-confirmed influenza cases in ICUs or other wards, or 


2) severe acute respiratory infections (SARI).


Severe acute respiratory infection (SARI)-based hospital surveillance

Please refer to the Figures below for more information for this week.


Disclaimer: Please note that the displayed data is not correct.