Influenza Update N° 485

Overview

^{Published 25 July 2024 | For reporting Week 28, ending 14 July 2024}

Influenza

• In the Northern hemisphere elevated influenza activity was reported in countries in Central America and the Caribbean Western Africa and Southern Asia predominantly due to A(H3N2) viruses. Activity in temperate countries remains low at interepidemic levels. Activity increased in few countries in Central America and Western Africa.
• In the Southern hemisphere influenza activity continues to be elevated in Southern Africa (due to B viruses) and South America and Oceania (due to A not subtyped viruses). There are indications that activity is decreasing in South America and Southern Africa. Activity in some countries in Oceania increased.
  

SARS-CoV-2

• SARS-CoV-2 activity, reported from sentinel surveillance in 61 countries, was elevated in some countries in Central America and the Caribbean, South West Europe, South Eastern Europe, and Northern Europe. Activity decreased in South East Asia and increased in some countries in South West Europe.

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://www.who.int/publications/i/item/WHO-2019-nCoV-integrated_sentinel_surveillance-2022.1.