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In March and April 2009, an outbreak of a new strain of influenza commonly referred to as "swine flu" infected many people in Mexico and other parts of the world, causing illness ranging from mild to severe.
30 kwi 2009 · Previous instances of human-to-human transmission of other swine viruses have been reported to result in small clusters of disease and limited generations of disease transmission (2,3). Several findings indicate that transmission in Mexico involves person-to-person spread with multiple generations of transmission.
We therefore undertook expansive surveillance efforts in Mexico, isolating the virus from pigs with respiratory symptoms in farms from six Mexican states with high swine production, including Sonora in northern Mexico, Yucatan in eastern Mexico, and previously unsampled states in central-east Mexico (Puebla), and central-west Mexico (Jalisco ...
5 cze 2024 · Depending on the original host, influenza A viruses can be classified as avian influenza, swine influenza, or other types of animal influenza viruses. Avian influenza virus infections in humans may cause mild to severe upper respiratory tract infections and can be fatal.
23 mar 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 that infect pigs, birds and humans.
28 cze 2016 · The sequences revealed extensive diversity among the influenza viruses circulating in Mexican swine. Several viruses included genetic segments that originated from viruses from Eurasia (the landmass containing Europe and Asia) and had not previously been detected in the Americas.
The new virus was first isolated in late April by American and Canadian laboratories from samples taken from people with flu in Mexico, Southern California, and Texas. Soon the earliest known human case was traced to a case from 9 March 2009 in a 5-year-old boy in La Gloria, Mexico, a rural town in Veracruz.