Avian Diseases Bird Flu Outbreaks Bird Flu Impact Disease Outbreaks Disease Management Avian Influenza Dairy Farming Biosecurity Measures Biosecurity Cattle Farming Bird Flu Disease Control Disease Surveillance Bird Flu Management Bird Flu Risks Vaccination Strategies Bird Markets Vaccine Development Infectious Diseases Disease Prevention Dairy Cattle
Experts investigate whether the decline reflects natural seasonality, reduced surveillance, or undetected infections among at-risk groups.