Bird Flu (H5N1) Explained: 5th U.S. Human Infection Reported in Colorado

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Bird Flu (H5N1) Explained: 5th U.S. Human Infection Reported In Colorado


TOPLINE Here's the latest news about a global outbreak of H5N1 bird flu that started in 2020, and recently spread among cattle in U.S. states and marine mammals across the world, which has health officials closely monitoring it and experts concerned the virus could mutate and eventually spread to humans, where it has proven rare but deadly.
Chickens Test Positive For The H7 Strain Of Bird Flu
A sign warns of a outbreak of bird flu.GETTY IMAGES
TIMELINE
July 3Colorado health officials confirmed the state's second human case of bird flu in a dairy farm worker who has since recovered and only had mild symptoms, reporting pink eye.



June 25Finland said it plans to begin vaccinating vulnerable populations like farm workers against bird flu as early as next week using 10,000 vaccine series—each with two doses—acquired as part of a European Union deal with vaccine maker CSL Seqirus to provide up to 40 million vaccines to 15 countries.

June 11The World Health Organization announced a four-year-old child in India was infected with H9N2 bird flu—a different flu strain from H5N1—but recovered after suffering from seizures, respiratory distress, fever and abdominal cramps; H9N2 has infected around 100 people globally since 1998, and this is the second human case in India.


June 6Dozens of cows infected with bird flu have either died or been slaughtered in Colorado, Ohio, Michigan, South Carolina and Texas, which is unusual since—unlike poultry—cows cost more to slaughter and around 90% usually make a full recovery, Reuters reported.

June 5A new study examining the 2023 bird flu outbreak in South America that killed around 17,400 elephant seal pups and 24,000 sea lions found the disease spread between the animals in several countries, the first known case of transnational virus mammal-to-mammal bird flu transmission.



May 30Another human case of bird flu has been detected in a dairy farm worker in Michigan—though the cases aren't connected—and this is the first person in the U.S. to report respiratory symptoms connected to bird flu, though their symptoms are "resolving," according to the Centers for Disease Control and Prevention.

May 23A new study with mice suggests that drinking infected milk can spread the disease—and that a certain type of pasteurization may not always be effective in killing the virus.


May 22Michigan reported bird flu in a farmworker—the second U.S. human case tied to transmission from dairy cows—though the worker had a mild infection and has since recovered.

May 21Australia reported its first human case of bird flu after a child became infected in March after traveling to India, though the child has since recovered after suffering from a "severe infection," according to the Victorian Department of Health.
Source:
https://www.forbes.com/sites/ariannajohnson/2024/07/03/bird-flu-h5n1-explained-second-colorado-person-infected-5th-us-case/

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