H5N1 Bird Flu Alert: 70 US Cases Reported, Public Health Level Raised to Level 2 Amid Ongoing Outbreaks

This is an official health update titled H5N1 Bird Flu Briefing Public Health Alert. The purpose of today’s briefing is to inform the public about recent developments related to H5N1 bird flu, clarify the current public health alert level, and provide guidance for individuals and communities. As of September 20, 2025, bird flu remains a significant public health concern in North America. According to the Pan American Health Organization and the Centers for Disease Control and Prevention, outbreaks of highly pathogenic avian influenza H5N1 have been reported across poultry, wild birds, and, increasingly, mammals, including dairy cattle and even domestic pets. To date, there have been 70 documented human cases in the United States since 2024, largely among people with direct exposure to sick poultry or dairy herds. One fatality was reported this year in Louisiana after exposure to a backyard flock. Given continuing outbreaks and recent animal-to-human transmission cases, local and national health agencies have elevated the public health alert to Level 2, indicating ongoing exposure risks for people in direct contact with poultry, livestock, or wild birds. This level does not reflect sustained human-to-human transmission—there is currently no evidence of such spread—but it means heightened awareness and preventive actions are necessary. If you experience symptoms such as high fever, cough, difficulty breathing, severe muscle aches, fatigue, or gastrointestinal symptoms and you have had contact with sick birds, dairy cattle, or contaminated environments, you should seek immediate medical evaluation. According to Los Angeles County Public Health, milder symptoms, such as conjunctivitis, runny nose, or minor body aches without respiratory compromise, can often be monitored at home if you are not in a high-risk group. However, anyone developing shortness of breath, chest pain, persistent vomiting, or a sudden worsening should seek urgent care. Containment is critical for anyone working in poultry farms, culling operations, or dairy production. Workers must follow strict biosecurity measures, including wearing appropriate personal protective equipment such as gloves, masks, and eye protection, and should avoid consuming raw or unpasteurized products. Disinfect equipment and vehicles, minimize unnecessary movement between farms, and report sick or dead animals to agricultural authorities promptly. Vaccination is available for certain high-risk workers and is strongly encouraged where offered. For the general public, the most effective steps, in order of priority, are as follows: - Avoid direct contact with wild birds, sick or dead poultry, or livestock. - Do not touch surfaces or objects contaminated by bird or animal droppings. - Cook poultry, meat, and eggs thoroughly. - Wash hands frequently with soap and water, especially after contact with animals or outdoor environments. - Keep pets away from wild birds and do not feed pets raw poultry or unpas This content was created in partnership and with the help of Artificial Intelligence AI.