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.
Types of Influenza. 1  Influenza Type A viruses can infect people, as well as birds, pigs, horses, and other animals. There are different strains (or subtypes) of influenza type A viruses, two of which circulate among humans: H1N1 and H3N2. These two subtypes are included in the seasonal flu vaccine each year.