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Health

Alarming Spread of H5N1 Bird Flu Virus Across Mammals

Recent studies have shed light on the alarming spread of the H5N1 bird flu virus, with the first known case of mammal-to-mammal transmission discovered. The outbreak, which originated in 2020, has now affected cattle in U.S. states and marine mammals globally, prompting health officials to closely monitor the situation.

In a study examining the 2023 bird flu outbreak in South America, it was found that the disease had spread among elephant seal pups and sea lions across multiple countries, marking a significant milestone in the transmission of the virus between mammals.

Furthermore, a recent case of bird flu was reported in a dairy farm worker in Michigan, highlighting the potential risks to humans. While this is the first such case in the U.S., the individual is reportedly recovering from the respiratory symptoms associated with the virus.

Studies with mice have also indicated that the virus can be transmitted through infected milk, raising concerns about the effectiveness of certain pasteurization methods in killing the virus. This finding underscores the need for enhanced safety measures in dairy production.

Additional cases of bird flu have been reported in farmworkers, with one individual in Michigan experiencing a mild infection that ultimately resolved. Similarly, Australia documented its first human case of bird flu, emphasizing the global reach of the virus.

Efforts to ensure food safety have been ramped up, with the USDA conducting studies on the virus’s survivability in beef. The findings revealed that thorough cooking can eliminate the virus, providing reassurance for consumers.

Wastewater data from the Centers for Disease Control and Prevention indicated elevated levels of influenza A in several states, raising concerns about potential sources of the virus. The agency’s inability to differentiate between subtypes underscores the complexity of monitoring and tracking the H5N1 virus.

Government agencies have taken proactive measures to safeguard public health, with the Food and Drug Administration allocating additional funds to protect the milk supply chain. The Department of Agriculture has also implemented financial support for farms to mitigate the spread of the virus, underscoring the collaborative efforts to combat the bird flu outbreak.

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