Bird Flu in California: What You Need to Know

California is seeing a surge in bird flu cases among dairy farmers. In just three weeks, the state has reported its third case, making it the 17th human case in the U.S. over the past two years. The latest patient has mild symptoms like eye redness and infection. Experts think the virus is spreading from dairy cows, as all three patients had contact with them. The CDC has confirmed six human cases linked to dairy cows and nine to poultry since 2022, across five states. One person got the illness without known animal contact.

The virus is spreading fast among dairy cattle herds in at least 14 states. It has infected over 100 million birds in 48 states and 295 dairy herds. Symptoms in humans range from mild fever and runny nose to severe pneumonia. The virus can linger in water, soil, and surfaces for up to 48 hours. The CDC says the public risk is low, but some experts worry the virus could mutate and spread more easily among people. Dr. Rick Bright warns that as the virus spreads among animals, the chances of it infecting humans increase. He adds that if the virus mutates before we can control it, it could become a bigger problem. Farms in California are struggling, with up to 60% of herds infected and 15% of cows dying. Farmers are concerned and want to know how to prevent and manage the disease.

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