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.
Chile's flu vaccination campaign has reached 61.2% progress, exceeding the April target, but with low coverage in children, seniors, and pregnant women. Public Health Undersecretary Alejandra Pizarro urged reaching 70% in May. Over 6 million doses have been administered at more than 1,700 free sites.
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A nasal spray delivering a broad-spectrum antibody has demonstrated potential to prevent infections from any flu strain in animal and preliminary human studies. Developed initially by Johnson & Johnson and now advanced by Leyden Labs, the spray could offer rapid protection during pandemics. Experts see it as a valuable tool for high-risk groups, though further testing is needed.
Flu cases in Sweden have doubled every week since mid-November, driven by the new K variant of the influenza virus. The Public Health Agency reports a rapid increase, with cases rising from 403 to 808 in one week. Severe cases, including deaths and intensive care admissions, have also risen from low levels.
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Una mutazione del virus dell'influenza A, nota come sottoclade K H3N2, ha portato a un aumento dei ricoveri in Europa e Stati Uniti, sebbene non siano riportati casi più gravi. In America Latina, incluso il Messico, è in atto una sorveglianza preventiva senza che questa variante prevalga. Le autorità raccomandano la vaccinazione per i gruppi vulnerabili di fronte al rischio di diffusione.
Influenza cases in Japan averaged 14.90 per medical institution last week, surpassing the alert threshold of 10. The health ministry announced on Friday that infections are rising across all 47 prefectures, based on data from about 3,000 monitored institutions. This surge signals a potential large-scale outbreak within four weeks.
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I casi gravi di influenza stanno aumentando nella regione Sud-Est del Brasile e iniziano a diffondersi in Bahia, secondo il bollettino Infogripe di Fiocruz. Il virus dell'influenza A è la principale causa di decessi per Sindrome Respiratoria Acuta Grave (SRAG) nel paese finora. I dati coprono la settimana epidemiologica 44, dal 26 ottobre al 1 novembre.
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