SAT and ACT Score Requirements for Vanderbilt University, Nashville, Tennessee.
Type A flu is the most common type of influenza. Type A influenza symptoms include respiratory symptoms like coughing and sneezing and a runny nose, as well as influenza symptoms like headache, muscle aches, and fever. Flu symptoms are similar to the symptoms of a cold, but fever is rare with a cold and common with the flu.
Avian influenza. For the H5N1 subtype of Avian influenza, see Influenza A virus subtype H5N1. Avian influenza â known informally as avian flu or bird flu â refers to influenza caused by viruses adapted to birds.. The type with the greatest risk is highly pathogenic avian influenza (HPAI). Bird flu is a phrase similar to swine flu, dog flu, horse flu, or human flu in that it refers to an illness caused by any of many different strains of influenza viruses that have adapted to a specific host.