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Hace 3 días · The different sites of infection (shown in red) of seasonal H1N1 versus avian H5N1 influences their lethality and ability to spread. [21] In general, humans who catch a humanized influenza A virus (a human flu virus of type A) usually have symptoms that include fever , cough , sore throat , muscle aches , conjunctivitis , and, in severe cases, breathing problems and pneumonia that may be fatal ...
Hace 8 horas · Influenza, commonly known as " the flu " or just " flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four (typically two) days after exposure to the virus and last for about ...
Hace 3 días · The 1918–1920 flu pandemic, also known as the Great Influenza epidemic or by the common misnomer Spanish flu, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus. The earliest documented case was March 1918 in the state of Kansas in the United States, with further cases recorded in France, Germany and ...
3 de may. de 2024 · influenza type A virus. influenza A H1N1, virus that is best known for causing widespread outbreaks, including epidemics and pandemics, of acute upper or lower respiratory tract infection. The influenza A H1N1 virus is a member of the family Orthomyxoviridae (a group of RNA viruses). Type A is one of the three major types of influenza viruses ...
- The Editors of Encyclopaedia Britannica
13 de may. de 2024 · La vacuna contiene las cepas de influenza A (H1N1), A (H3N2) y tipo B (Victoria) y al aplicarse, el organismo de la persona genera anticuerpos para defenderse de la infección por influenza, evitar casos graves y la muerte. La vacuna no produce enfermedad, y si después de aplicársela se presenta gripe, puede ser porque el virus ya estaba en ...
Hace 5 días · Influenza, acute viral infection of the upper or lower respiratory tract, marked by fever, chills, and a generalized feeling of malaise. Influenza is caused by viruses in the family Orthomyxoviridae. Learn more about the classification of influenza viruses, influenza outbreaks, and influenza symptoms and treatment.
8 de may. de 2024 · El subtipo H1N1 surgió de un agrupamiento cuádruple de dos virus porcinos, un virus aviar y un virus humano, y causó la pandemia del virus en 2009. En estos casos, los síntomas suelen ser leves, con cuadros de nauseas, vómitos y diarrea, pero se pueden agravar y causar neumonía o insuficiencia respiratoria.
