Influensa
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.
Hong Kong is approaching the winter flu season, but vaccination rates among most age groups remain below the 70 per cent threshold needed for herd immunity, a leading government medical adviser has warned. David Hui Shu-cheong on Saturday reminded the public to get vaccinated ahead of Lunar New Year, when social gatherings are frequent.
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Influensa har virkelig kommet til Sverige. I årets første uke ble 2131 tilfeller bekreftet, en økning på 22 prosent fra slutten av forrige uke. Utbredelsen vurderes til middels høyt nivå, ifølge Folkhälsomyndigheten.
An international team led by ETH Zurich and including researchers in Japan has used a new high‑resolution imaging technique to watch, live, as influenza viruses penetrate human cells. The work shows that cells actively engage with the virus, helping to draw it inside in a process that resembles surfing along the cell membrane, and could inform the development of targeted antiviral therapies.
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Ved Tallängens skole i Kumla kommune har 100 elever – nesten halvparten av skolen – blitt syke med influensa samtidig. Dette utbruddet sammenfaller med starten på Sveriges influensasesong 2025, dominert av den såkalte K-varianten. Smitte forventes å øke i ukene som kommer.
Researchers have found that the H5N1 avian influenza virus can survive in raw milk cheese made from contaminated milk, even after the FDA's required 60-day aging period. Highly acidic cheeses, such as feta, showed no detectable virus, highlighting acidity's role in safety. The study, published in Nature Medicine, also indicates that while drinking contaminated milk can infect animals, eating the cheese does not.
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A recent study has found that influenza infections are associated with a doubled risk of urinary tract infections in adults. Researchers analyzed data from thousands of patients to uncover this connection. The findings highlight potential vulnerabilities during flu season.