Influenza
Super flu cases detected in Central and West Java
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Central Java's Health Department detected one case of super flu, or influenza A H3N2 subclade K, in Semarang at the end of December 2025. Meanwhile, Hasan Sadikin Hospital in Bandung confirmed 10 cases in West Java from August to November 2025, with one patient dying due to comorbidities. Health officials stress that this is not a new virus and the situation is under control.
Jorge Carrasco, president of the Chilean Society of Pediatrics, said flu vaccine coverage for children under five stands at only 60.54%, below the 80% target.
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The Ministry of Health reported that positivity of respiratory samples reached 52% during epidemiological week 23, the highest figure of the year. Influenza A remains the predominant virus, though with a slight decline.
Following initial alerts across Europe and the US, the Influenza A H3N2 subclade K variant—dubbed 'super flu'—has escalated into one of the most severe early outbreaks in the US and UK. The 2024-25 season marks the worst in the US since 2017-18 and earliest in the UK since 2003-04, with vaccines showing reduced effectiveness against this strain.
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Building on international alerts, Colombia's Ministry of Health confirmed the first case of influenza A(H3N2) subclade K in a traveler with mild symptoms. Officials are monitoring this seasonal variant, with pediatric experts urging enhanced prevention amid peak transmission risks for children.
På Tallängens skole i Kumla kommune er 100 elever – næsten halvdelen af skolen – blevet syge med influenza samtidig. Dette udbrud sammenfalder med starten på Sveriges influenzasæson 2025, der domineres af den såkaldte K-variant. Overførslen forventes at stige i de kommende uger.
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En ny muteret sæsoninfluenza-variant fra Storbritannien spreder sig hurtigt i Sverige og undgår immunsystemet. Myndighederne advarer om en hårdere sæson end sædvanligt og opfordrer flere til at vaccinere sig, især risikogrupper. Eksperter diskuterer, hvor alvorlig vinteren kan blive.
Low influenza vaccination coverage puts pressure on MINSAL
lørdag d. 6. juni 2026, 09.40Flu cases rise in Hong Kong as immunity wanes, expert warns
fredag d. 1. maj 2026, 21.13Chile's flu vaccination campaign reaches 61.2% progress with low coverage in priority groups
onsdag d. 4. februar 2026, 20.06Nasal spray targets all influenza strains in early trials
fredag d. 23. januar 2026, 09.19Flu vaccination rates lag in Hong Kong as winter peak nears
torsdag d. 18. december 2025, 07.45Health ministry confirms detection of H3N2 sub-clade K supergripe in Chile
torsdag d. 18. december 2025, 03.23Health ministry activates preventive plan against h3n2 influenza
torsdag d. 11. december 2025, 03.38Fordobling af influenzatilfælde i Sverige
onsdag d. 10. december 2025, 23.28H3N2 flu variant triggers alerts in Europe and US
torsdag d. 4. december 2025, 01.32Scientists film influenza viruses ‘surfing’ into human cells in real time