What are the symptoms of avian flu?
Symptoms of avian influenza in humans have ranged from typical human flu-like symptoms like a fever, usually with a temperature higher than 100 degrees Fahrenheit, a cough, sore throat and muscle aches, to eye infections, pneumonia, severe respiratory diseases and other severe complications. Is there a vaccine? Because the pandemic strain has not yet emerged, there is no vaccine currently available. Vaccines to protect humans against bird flu viruses currently are under development. Of the hundreds of strains of avian influenza viruses, only four are known to have caused human infections: H5N1, H7N3, H7N7, and H9N2. In addition, research is underway on methods to make large quantities of vaccine more quickly. How is pandemic flu most likely to arrive in the United States? Migrating birds, the poultry trade and human travel are all possible ways experts believe could introduce pandemic flu into the United States. Public health officials are monitoring these and other possible mechanisms
