Epidemiological update - Western Equine Encephalitis in the Region of the Americas - 8 February 2024

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This epidemiological update provides new information on the WEE cases in the Americas, as well as surveillance guidance and the case definition for WEE in humans.
As of 9 January 2024, there were 1,314 outbreaks in animals (1,258 in Argentina and 56 in Uruguay) reported and 21 cases of this virus in humans had been confirmed, including one death, all in Argentina.
As of 5 February 2024, there were 2,438 outbreaks in animals (1,419 in Argentina, 1,018 in Uruguay, and one in Brazil) and 58 confirmed cases in humans (56 in Argentina and two in Uruguay) .