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26 lis 2024 · Monthly reported human cases of H5N1, a type of highly-pathogenic avian influenza. Only a small fraction of potential cases are tested by labs to confirm whether they have influenza and to identify their strain.
17 lut 2022 · Highly pathogenic avian influenza viruses (HPAIV) cause high mortality in infected chicken, while low pathogenic viruses (LPAIV) result in mild disease or asymptomatic infection. HPAIV A (H5N1) is highly infectious for a number of bird species, including most species of domestic poultry [1].
H5N1 influenza virus infection can cause a range of diseases in humans, from mild to severe and in some cases, it can even be fatal. Symptoms reported have primarily been respiratory, but conjunctivitis and other non-respiratory symptoms have also been reported.
25 paź 2024 · Since 2003, more than 23 countries have reported more than 890 sporadic human infections with A (H5N1) bird flu viruses to WHO.
H5N1 infections in humans are generally caused by bird to human transmission of the virus. Until May 2006, the WHO estimate of the number of human to human transmissions had been "two or three cases".
31 maj 2023 · While most avian influenza viruses are not zoonotic, meaning they do not spread from animals to humans, some strains – such as A (H5N1) – can occasionally infect humans and pose a threat to people’s health.
Confirmed H5N1 influenza cases, including those confirmed clinically, epidemiologically, or by laboratory investigation. Cases confirmed by laboratory testing. Confirmed cases reported to WHO's Department of Epidemic and Pandemic Alert and Response.
