Influenza A (H1N1) - World Health Organization (WHO)
WEBUnlike typical seasonal flu patterns, the new virus caused high levels of summer infections in the northern hemisphere, and then even higher levels of activity during cooler months. The new virus also led to patterns of death and illness not normally seen in …
Influenza A (H1N1) virus - Global - World Health Organization …
WEBJun 19, 2010 · Human infection with pandemic (H1N1) 2009 virus: updated interim WHO guidance on global surveillance; The maps below display information on the qualitative indicators reported. Information is available for approximately 60 countries each week.
H1N1 flu (swine flu) - Symptoms and causes - Mayo Clinic
WEBMar 23, 2023 · The H1N1 flu, sometimes called swine flu, is a type of influenza A virus. During the 2009-10 flu season, a new H1N1 virus began causing illness in humans. It was often called swine flu and was a new combination of influenza viruses …
2009 H1N1 Pandemic (H1N1pdm09 virus) | Pandemic Influenza (Flu…
WEBJun 11, 2019 · In the spring of 2009, a novel influenza A (H1N1) virus emerged. It was detected first in the United States and spread quickly across the United States and the world. This new H1N1 virus contained a unique combination of influenza genes not previously identified in animals or people.
Pandemic H1N1/09 virus - Wikipedia
WEBThe pandemic H1N1/09 virus is a swine origin influenza A virus subtype H1N1 strain that was responsible for the 2009 swine flu pandemic. This strain is often called swine flu by the public media due to the prevailing belief that it originated in pigs.
Weekly US Influenza Surveillance Report: Key Updates for Week 37 ...
WEB2 days ago · Including these reports, nine variant influenza virus cases have been reported during the 2023-2024 season (four A(H1N2)v, four A(H3N2)v, and one A(H1N1)v virus). When an influenza virus that normally circulates in swine (but not people) is detected in a person, it is called a "variant" influenza virus.
2009 H1N1 Pandemic Timeline | Pandemic Influenza (Flu) | CDC
WEBMay 8, 2019 · In 2009, a new H1N1 influenza virus emerged, causing the first global flu pandemic in 40 years. Below is a timeline of major events that took place during the 2009 H1N1 pandemic. Influenza Historic Timeline. 1918 Pandemic Influenza Historic Timeline.
H1N1 Flu Facts and Information | Influenza Activity Map
WEBJun 28, 2023 · Influenza activity map, facts and information about the H1N1 (swine) flu.
Influenza A virus subtype H1N1 - Wikipedia
WEBInfluenza A virus subtype H1N1 (A/H1N1) is a subtype of influenza A virus (IAV). Some human-adapted strains of H1N1 are endemic in humans and are one cause of seasonal influenza (flu). [1] Other strains of H1N1 are endemic in pigs (swine influenza) and in birds (avian influenza). [2]
Does the H1N1 Virus Still Exist? Causes & Risk Factors - Verywell …
WEBAug 7, 2024 · The H1N1 virus—known as swine flu—is one type of influenza A virus. Influenza A (H1N1) viruses still exist today. Scientists call it the A (H1N1)pdm09 virus. Influenza type A and type B viruses cause disease epidemics in people during flu season. During most years, this is the winter months.
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