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Influenza (flu) The Centers for Disease Control and Prevention (CDC) estimates that, as of April 4, 2020, the 2019–2020 United States flu season had caused 39 million to 56 million flu illnesses, 410,000 to 740,000 hospitalizations and 24,000 to 62,000 deaths. [1] In January 2020, the Director of the National Institute of Allergies and ...
United States influenza statistics by flu season. US influenza statistics by flu season. From the Centers for Disease Control and Prevention page called "Disease Burden of Flu": "Each year CDC estimates the burden of influenza in the U.S. CDC uses modeling to estimate the number of flu illnesses, medical visits, hospitalizations, and deaths ...
Influenza-like illness ( ILI ), also known as flu-like syndrome or flu-like symptoms, is a medical diagnosis of possible influenza or other illness causing a set of common symptoms. These include fever, shivering, chills, malaise, dry cough, loss of appetite, body aches, nausea, and sneezing typically in connection with a sudden onset of ...
In January 2019 an outbreak of H1N1 was recorded in Morocco, with nine confirmed fatalities. 2019 Iran outbreak. In November 2019 an outbreak of H1N1 was recorded in Iran, with 56 fatalities and 4,000 people hospitalized. G4 virus. The G4 virus, also known as the "G4 swine flu virus" (G4) and "G4 EA H1N1", is a swine influenza virus strain ...
Influenza B virus is the only species in the genus Betainfluenzavirus in the virus family Orthomyxoviridae . Influenza B virus is only known to infect certain mammal species, including humans, ferrets, pigs, and seals. [4] [5] This limited host range is apparently responsible for the lack of influenza pandemics associated with influenza B virus ...
Middle East respiratory syndrome ( MERS) is a viral respiratory infection caused by Middle East respiratory syndrome–related coronavirus (MERS-CoV). [1] Symptoms may range from none, to mild, to severe depending on age and risk level. [6] [1] Typical symptoms include fever, cough, diarrhea, and shortness of breath. [1]
e. Influenza A virus subtype H5N1 ( A/H5N1) is a subtype of the influenza A virus, which causes influenza (flu), predominantly in birds. It is enzootic (maintained in the population) in many bird populations, and also panzootic (affecting animals of many species over a wide area). [1] A/H5N1 virus can also infect mammals (including humans) that ...
The Hong Kong flu was the first known outbreak of the H3N2 strain, though there is serologic evidence of H3N2 infections in the late 19th century. The first record of the outbreak in Hong Kong appeared on 13 July 1968 in an area with a density of about 500 people per acre in an urban setting.