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[8] [10] In 2020, reassortment (genetic "swapping") between these H5-2.3.4.4b viruses and other strains of avian influenza led to the emergence of a H5N1 strain with a H5-2.3.4.4b gene. [8] The virus then spread across Europe, first detected there in the autumn of 2020 before spreading to Africa and Asia . [ 1 ]
In 2015, an outbreak of avian influenza subtype H5N2 was identified in a series of chicken and turkey farming operations in the Midwestern United States.By May 30, more than 43 million birds in 15 states had been destroyed as a result of the outbreak, including nearly 30 million in Iowa alone, the nation's largest egg producer.
Map of states that have confirmed cases of highly pathogenic avian influenza in livestock. (Map courtesy of USDA) Vilsack said on Thursday that the start of migratory bird season could also cause ...
The USDA said samples of milk collected from sick cattle in Kansas and Texas tested positive for avian flu, but the nation's milk supply was safe. Dec. 12, 2023
Since this avian flu outbreak began in 2022, the virus has become widespread in wild birds, commercial poultry and wild mammals like sea lions, foxes and black bears. ... The USDA on Tuesday ...
From February to April 2022, avian flu outbreaks in United States have resulted in the culling of more than 22.8 million birds in 24 states. [24] Avian flu has affected England. In Norfolk, Suffolk and parts of Essex, poultry has been mandated to be kept indoors after the affected areas were placed in an Avian Influenza Prevention Zone. [25]
There are 11 confirmed cases of people being sickened by avian flu in Washington and three suspected cases, say state health officials. ... but the USDA has tracked the virus in more than 200 mammals.
California Gov. Gavin Newsom declared a state of emergency Wednesday to combat bird flu, which has spread to more than a quarter of all the state's dairies in the last month and infected 34 state ...