Ad
related to: influenza worldwide deaths 2020 wikipedia today show hot
Search results
Results From The WOW.Com Content Network
Frequency. 3–5 million severe cases per year [1][2] Deaths. >290,000–650,000 deaths per year [3][4] 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.
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 ...
Seasonal variation in deaths due to influenza or pneumonia in 122 U.S. cities, as a proportion of all causes [10] In the United States , the flu season is considered October through May. [ 11 ] It typically reaches an apex in February, [ 12 ] with a seasonal baseline varying between 6.1% and 7.7% of all deaths. [ 10 ]
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 ...
This is a timeline of influenza, briefly describing major events such as outbreaks, epidemics, pandemics, discoveries and developments of vaccines.In addition to specific year/period-related events, there is the seasonal flu that kills between 250,000 and 500,000 people every year and has claimed between 340 million and 1 billion human lives throughout history.
The Influenza A virus subtypes that have been confirmed in humans, ordered by the number of known human pandemic deaths, are: [citation needed] H1N1 caused Spanish flu, 1977 Russian flu, and the 2009 swine flu pandemic (novel H1N1) H2N2 caused Asian flu. H3N2 caused Hong Kong flu. H5N1 is bird flu, endemic in avians.
2020–2024 H5N1 outbreak. Since 2020, outbreaks of avian influenza subtype H5N1 have been occurring, with cases reported from every continent as of May 2024. [1][2][3][4] Some species of wild aquatic birds act as natural asymptomatic carriers of a large variety of influenza A viruses, which can infect poultry, other bird species, mammals and ...
Influenza vaccines, colloquially known as flu shots, are vaccines that protect against infection by influenza viruses. [ 14 ][ 15 ] New versions of the vaccines are developed twice a year, as the influenza virus rapidly changes. [ 14 ] While their effectiveness varies from year to year, most provide modest to high protection against influenza ...