WHO: Influenza Update N° 531 Published 18 June 2025 | For reporting Week 23, ending 08 June 2025 In the Southern hemisphere, influenza positivity continued to increase and was moderate to high (above 20%) in a few countries of Temperate South America (predominantly A(H1N1)pdm09). Influenza positivity was elevated (>10%) in countries of Tropical and Temperate South America (predominantly A(H1N1)pdm09), Southern Africa (predominantly A(H3N2)), Eastern Africa…
WHO: Influenza Update N° 529 June 4, 2025 | Emergency Situational Updates (For reporting Week 21, ending 25 May 2025) In the Southern hemisphere, influenza activity remained stable in most countries with increases reported in a few countries in Temperate South America and Eastern Africa. Influenza positivity was elevated (>10%) in Tropical and Temperate South America (predominantly A(H1N1)pdm09), Southern Africa (predominantly A(H3N2)), Eastern Africa (predominantly A(H1N1)pdm09)…
WHO: Influenza Update N° 527 May 21, 2025 | Emergency Situational Updates (For reporting Week 19, ending 11 May 2025) In the Northern hemisphere, influenza positivity continued to decline or remained stable with minor increases reported in a few countries in Central America and the Caribbean, Eastern Africa, Eastern Europe, and Southern, South-East and Eastern Asia. Influenza positivity remained elevated in Central America and the Caribbean…
WHO: Influenza Update N° 525 May 7, 2025 | Emergency Situational Updates In the Northern hemisphere, influenza positivity continued to decline or remained stable in most countries. Influenza positivity remained elevated in Central America and the Caribbean and Tropical South America (predominantly A(H1N1)pdm09), in Western Africa (predominantly A(H1N1)pdm09), Eastern Africa (predominantly A viruses), in Europe and Western Asia (predominantly A(H3N2) and B), in Southern Asia (predominantly…
WHO Influenza Update N0 522 In the Northern hemisphere, activity continued to decline or remained stable in most countries with minor increases reported in a few countries in Central America and the Caribbean, Western Asia and Northern and Southwest Europe. Influenza positivity remained elevated (>10%) in parts of North America, Tropical South America and Central America and the Caribbean (predominantly A(H1N1)pdm09), Northern and Eastern Africa…
WHO Influenza Update N0 520 In the Northern hemisphere, activity continued to decline or remained the same in most countries. Minor increases in activity were reported in a few countries in Central America and Caribbean, Southwest and Eastern Europe, and Western, Southern and South-East Asia. Influenza positivity remained elevated (>10%) in the Americas (predominantly A(H1N1)pdm09 and A(H3N2)), Western (predominantly A(H1N1)pdm09) and Northern Africa (predominantly A(H3N2)…
WHO: Influenza Update N0 518 12 March 2025 In the Northern hemisphere, activity decreased or remained the same in most countries. Increased activity was reported in a few countries in Central America and the Caribbean, Tropical South America, Northern, Western and Middle Africa, Central, South and South-East Asia, and Eastern Europe. Activity remained elevated in North America and Central America and the Caribbean with co-circulation…
Influenza Update N0 517 (WHO March 12, 2025) In the Northern hemisphere, influenza activity in general remained the same or decreased except in a few countries in Central America and the Caribbean, Europe and Western Asia. Activity remained elevated in North America (predominantly A(H1N1)pdm09), Central America and the Caribbean and Tropical South America (predominantly A(H1N1)pdm09 and A(H3N2)), Western and Northern Africa (predominantly A(H1N1)pdm09), Europe (all…
Spatial analysis of COVID-19 incidence and mortality rates in northwest Iran for future epidemic preparedness (Scientific Reports 2025;15:7450) The COVID-19 pandemic has underscored the critical need for effective public health strategies to combat infectious diseases. This study examines the epidemiological characteristics and spatial distribution of COVID-19 incidence and mortality in Zanjan Province, northwest Iran, to inform future epidemic preparedness. Using data from 39,739 hospitalized COVID-19…
Seasonal Influenza surveillance and vaccination policies in the WHO South-East Asian Region. The WHO South-East Asia Region (SEAR), with its high population density, is recognised by epidemiologists as a critical reservoir for the emergence and global dissemination of novel influenza strains, making it a potential epicentre for future influenza pandemics. Despite this significant risk, most SEAR countries lack comprehensive seasonal influenza vaccination policies, resulting in…
