Influenza (avian and other zoonotic) - World Health Organization …
2023年10月3日 · Exposure to avian influenza viruses can lead to infection and disease in humans, ranging from mild, flu-like symptoms or eye inflammation to severe, acute respiratory disease and/or death. Disease severity will depend upon the virus causing the infection and the characteristics of the infected individual.
Influenza A (H1N1) - World Health Organization (WHO)
Before the H1N1 pandemic in 2009, the influenza A(H1N1) virus had never been identified as a cause of infections in people. Genetic analyses of this virus have shown that it originated from animal influenza viruses and is unrelated to the human seasonal H1N1 viruses that have been in general circulation among people since 1977.
Influenza: A(H5N1) - World Health Organization (WHO)
2024年5月16日 · H5N1 is one of several influenza viruses that causes a highly infectious respiratory disease in birds called avian influenza (or "bird flu"). Infections in mammals, including humans, have also been documented. 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.
Influenza (avian and other zoonotic) - World Health Organization …
2024年10月16日 · Avian, swine and other zoonotic influenza infections in humans may cause disease ranging from mild upper respiratory infection (fever and cough) to rapid progression to severe pneumonia, acute respiratory distress syndrome, shock and even death.
Avian Influenza A (H5N1) – United States of America
2024年4月9日 · The World Health Organization (WHO) was notified about a laboratory-confirmed case of human infection with an influenza A(H5N1) virus on 1 April 2024 by the United States of America IHR National Focal Point (NFP). The patient developed symptoms on 27 March and had a history of exposure to dairy cattle (cows) presumed to be infected with influenza A (H5N1) …
Influenza: Avian - World Health Organization (WHO)
2024年5月16日 · Avian influenza, sometimes known as bird flu, is a disease caused by a virus that mainly affects birds but can also affect mammals, including humans. It primarily spreads from infected birds to humans through close contact with birds or contaminated environments, such as in backyard poultry farm settings and at markets where birds are sold.
Avian influenza and people - World Health Organization (WHO)
2023年5月31日 · Over recent years, avian influenza or bird flu due to highly pathogenic avian influenza (HPAI) A (H5N1) has devastated millions of poultry flocks and affected wild birds in different regions of the world, including the WHO European Region. This Region has seen its worst-ever spate of avian influenza infections with 2500 outbreaks on farms in 37 countries …
Avian Influenza A (H5N1) - Australia - World Health Organization …
2024年6月7日 · On 22 May 2024, the World Health Organization (WHO) was notified of a laboratory-confirmed case of human infection with avian influenza A(H5N1) virus (clade 2.3.2.1a) by the International Health Regulations (IHR) National Focal Point (NFP) of Australia. This is the first confirmed human infection caused by avian influenza A(H5N1) virus detected and …
Zoonotic influenza - World Health Organization (WHO)
Zoonotic influenza refers to disease caused by animal influenza viruses that cross the animal–human divide to infect people. People can be infected with influenza viruses that are usually circulating in animals, such as avian influenza virus subtypes A(H5N1) and A(H9N2) and swine influenza virus subtypes A(H1N1) and (H3N2).
Newsroom - World Health Organization (WHO)
2024年7月22日 · Avian influenza, or bird flu, is not a new disease, despite recently occupying the spotlight after an outbreak among dairy cattle in the United States of America. In fact, the virus causing the current outbreaks – H5N1 – first emerged in 1996/1997 in Hong Kong and later re-emerged in 2003/2004. Avian influenza has continuously evolved since then, and is commonly …