Influenza


True influenza is an acute infectious disease caused by a member of the orthomyxovirus family: influenza virus A, B or, to a much lesser extent, influenza virus. However, the term 'flu' is often used for any febrile respiratory illness with systemic symptoms that may be caused be a myriad of bacterial or viral agents as well as influenza viruses. Influenza outbreaks usually occur in the winter in temperate climates. In the United States, the 'flu season usually starts in October or November and is at its height from December to March. the bacteria can chage to different types of Influenza lke h1n1 and the flu spanish influenza the type that edwad was dying of in twilight it was most active in the 18 and 1900's that is when it was at its peak in the stage in the world that is when everyone had it and many people died from it. The person that found influenza was named JS Koen, a veterinarian discovered that pigs had the same disease the brought about the Spanish influenza outbreak of the same year. 