Bird flu, or avian influenza, is a viral infection that primarily affects birds but can spread to humans. The most dangerous strains, like H5N1 and H7N9, cause severe illness. The virus spreads through contact with infected birds, their secretions, or contaminated surfaces, with migratory birds contributing to its spread. While human transmission is rare, strict biosecurity measures and early detection are crucial for prevention.
Symptoms in humans resemble the flu, including fever, cough, sore throat, and muscle aches, but severe cases can lead to pneumonia or respiratory distress. High-risk individuals should take precautions and seek medical attention if symptoms appear. Prevention involves hygiene, avoiding sick birds, and poultry vaccination to control outbreaks.