According to the California Department of Food and Agriculture (CDFA), three dairy farms in California have placed their cows under quarantine after they tested positive for avian influenza, also known as bird flu.
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California, the top dairy-producing state in the U.S., is taking proactive steps to ensure the safety of its milk and food supply. Presently, there are no imminent threats to the state’s agricultural products. In order to curb the spread of the virus, containment measures are being implemented.
Although there have been positive tests in livestock, there have been no reported cases of the bird flu virus in humans associated with the recent outbreak. The California Department of Public Health (CDPH) is collaborating with the CDFA to closely monitor any potential human exposure and has expressed its commitment to implementing appropriate public health measures.
“We have been preparing for the possibility of HPA1 detections at dairy farms in other states since earlier this year,” stated Karen Ross, the CDFA’s secretary. Ross highlighted the department’s expertise in managing HPA1, drawing from past poultry outbreaks, to effectively handle the situation.”
Ross expressed his concern for dairy farmers during these challenging times, acknowledging the economic difficulties they face in a rapidly changing market. He emphasized the urgency with which they are addressing the incident.
On August 25, 2024, herds at Central Valley farms started showing symptoms, leading to the detection of the virus. The California Animal Health and Food Safety (CAHFS) laboratory network conducted preliminary tests, which were later confirmed by the National Veterinary Services Laboratory (NVSL).
The bird flu virus is not seen as a major risk to public health, and the chances of humans contracting it are low. However, dairy workers who have close contact with infected cows still face concerns. In July, four farm workers in Colorado were reported to have been infected with the bird flu virus, as stated by the state’s health department.
The California Department of Public Health (CDPH) advises taking precautions to reduce the risk of infection. For individuals who handle infected animals or materials, it is recommended to use personal protective equipment (PPE) such as masks, gloves, caps, face shields, and safety goggles. This measure helps ensure the safety of farm workers and emergency responders.