A case of H5N1 influenza infection detected in US dairy cows

Second Case of H5N1 Bird Flu Confirmed in Texas: US Public Health Risk Remains Low

In Texas, a man has been diagnosed with H5N1 bird flu after being in close contact with infected dairy cows. The US Centers for Disease Control and Prevention (CDC) announced on April 1 that this is the second confirmed case in the US, following the first case in Colorado in 2022. According to preliminary analysis of the virus strain, there were no concerning mutations found.

The CDC stated that while the infection does not change their assessment of public health risk associated with H5N1 influenza in the United States, they still consider the risk of an outbreak here as low. The patient is currently isolated and receiving treatment with antiviral drugs.

While avian flu can be transmitted to humans, infections have only been reported in people who have had close contact with infected animals. However, the death rate of this flu strain can be as high as 50%, compared to 3% in regular flu cases. Current antibiotics are effective against circulating H5N1 influenza strains, and if the virus mutates to spread easily in humans, existing vaccines will also be effective in preventing it.

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