A second case of bird flu in humans has been confirmed in the United States since the virus was initially detected in dairy cattle in late March, U.S. officials said Wednesday.
The infection of a Michigan dairy worker expands the virus epidemic that has been circulating in poultry for years, even as the US Centers for Disease Control and Prevention (CDC) says the risk to the population overall remains Bass.
The CDC told reporters on a call that it has found no evidence of human-to-human transmission of the avian flu and that it has tested nearly 40 people since March, including the Michigan worker. All of the people tested were connected to or had contact with dairy companies, the CDC said.
A Texas worker was confirmed infected in April.
Michigan and Texas are among nine states that have reported avian influenza on dairy farms. Scientists said they believe the outbreak is more widespread, based on U.S. Food and Drug Administration (FDA) findings of H5N1 virus particles in about 20% of retail milk samples.
Similar to the Texas case, the Michigan patient reported only eye-related symptoms, according to the CDC. According to the state Department of Health and Human Services, she had mild symptoms and has recovered.
The worker was regularly exposed to livestock infected with avian influenza. According to the CDC, the leading hypothesis is that the case is the result of cow-to-human transmission.
Source: Terra
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