Glen Allen, Alabama. Glen Allen is a town located in Fayette and Marion counties in the U.S. state of Alabama. The town incorporated in May 1959. At the 2010 census the population was 510. Glen Allen is positioned along the BNSF railway and is near Interstate 22, providing access to multiple expanding industries.
Influenza, commonly known as the flu , is an infectious disease caused by the influenza virus. Symptoms can be mild to severe. The most common symptoms include: a high fever, runny nose, sore throat, muscle pains, headache, coughing, and feeling tired. These symptoms typically begin two days after exposure to the virus and most last less than a week.
Flu (Influenza) Cause. Influenza, or flu, is a respiratory infection caused by any of several flu viruses, which are classified as type A, B, or C based on their nucleic acids and protein composition.ype A viruses are found in humans and many animals, including ducks, chickens, pigs, and whales. Type A influenza viruses caused the global flu outbreaks of 1918, 1957, 1968, and 2009. Type B viruses circulate widely in humans.