Influenza Update N° 471

Overview

^{Published 17 April 2024 | For reporting week 14, which ended 07 April 2024}

Influenza

• Influenza activity continued to decline in most countries in the temperate zones of the northern hemisphere. The predominant circulating influenza virus varied by geographical area, with Europe continuing to see increases in the proportion of influenza B viruses.
 
• In the southern hemisphere, influenza activity remained low with few exceptions in South America, where influenza activity with mainly influenza A viruses is elevated.

 

SARS-CoV-2

• SARS-CoV-2 activity from sentinel surveillance, from 67 countries/areas/territories that met inclusion criteria, overall remains low but is elevated in some countries of South and Central America, Northern and Eastern Europe, Western Africa, and Eastern Asia. Increases in activity have been reported in Western Africa since the prior week.

WHO encourages countries, especially those that have received the multiplex influenza and SARS-CoV-2 reagent kits from GISRS, to conduct integrated surveillance of influenza and SARS-CoV-2 and report epidemiological and laboratory information in a timely manner to established regional and global platforms. The guidance can be found here: https://covid.comesa.int/publications/i/item/WHO-2019-nCoV-integrated_sentinel_surveillance-2022.1.