Bird flu, or avian influenza, is one such example. Influenza symptoms is an important step toward protecting your health. Key Takeaways Bird flu is caused by influenza viruses that primarily infect birds. Bird flu is a type of influenza caused by viruses that naturally circulate among wild birds and domestic Awareness and early action remain key to protecting yourself and your community from Avian Influenza

Key Takeaways H5N1 is a highly pathogenic avian influenza virus primarily affecting birds. Influenza viruses constantly change through mutation and genetic reassortment. Pandemic Virus Type Estimated Global Impact 1918 Influenza H1N1 Tens of millions of deaths 1957 Asian Influenza viruses are known for their ability to evolve. H5N1 is a highly pathogenic avian influenza virus that primarily infects birds but can occasionally infect

H5N1 is a subtype of influenza A virus that primarily infects birds. It belongs to a group of viruses known as avian influenza viruses and can cause severe disease in poultry