Centers for Disease Control and Prevention (CDC) and Colorado state officials said on Thursday that the US reported its first human case of H5 bird flu in Colorado.
The Colorado Department of Public Health and Environment (CDPHE) said that the man who tested positive was exposed to infected poultry when he worked at poultry in Montrose County in Colorado when he was incarcerated at a state prison.
The man tested positive for an avian influenza A(H5) virus earlier this week and the CDC verified the result on Wednesday, the CDPHE said, though repeat testing was negative for influenza.
According to the CDPHE, the man who tested positive may not have been infected with the virus, implying that the virus was present in his nose due to close contact with infected poultry but did not cause an infection.
CDPHE said that the man, younger than 40, was ‘largely asymptomatic’, and only reported fatigue.
CDPHE added that they did not confirm other cases in humans in Colorado or the US.
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