Bird flu found at four San Bernardino County dairy farms

San Bernardino County reported this week that H5N1 – bird flu – had been detected in four dairy farms. The announcement went on to say that the risk of infection from H5N1 remains relatively low and no person-to-person spread of the disease has been detected.

“While the risk of bird flu to the general public remains low, the detection of this virus in animals across multiple farms serves as a reminder to practice caution when handling animals or animal products,” said San Bernardino County Health Officer Sharon Wang in a statement. “It’s crucial to avoid raw milk consumption and follow proper food safety practices to reduce any potential risk of exposure.”

Symptoms of H5N1 typically appear within two to eight days of exposure, but can be up to 10 days, and may include:

• Eye redness or discharge
• Cough or sore throat
• Runny or stuffy nose
• Diarrhea or vomiting
• Muscle or body aches
• Headaches
• Fatigue
• Difficulty breathing
• Fever

Preventive measures for residents and pets:

• Avoid consuming unpasteurized “raw” milk and undercooked meat. Raw milk can contain harmful germs that may cause serious illness, particularly in children under 5 years old, pregnant individuals, and people with weakened immune systems. Choose pasteurized milk and dairy products, as the pasteurization process eliminates the bird flu virus.
• Individuals who interact with infected dairy cows, poultry or wildlife are at greater risk of infection.
• Wear protective clothing when working with birds, wildlife, livestock or their environments.
• Refrain from working with sick animals or those exposed to avian influenza.
• Wash hands frequently after handling animals or being in their environment.

For more details on bird flu, visit the California Department of Public Health’s Current Bird Flu Situation webpage.