influenza a b influenza disease
Influenza Questions And Answers
Influenza b causes milder disease and affects only humans, primarily children. It can cause mild to severe illness, and at times can. Fact sheet about the disease and its risk to humans. Britannica online encyclopedia article on influenza disease, an acute viral infection of the nose, throat, and lungs caused by the influenza virus. Centers for disease control and prevention cdc influenza resources.
The flu is a contagious infection of the upper or lower respiratory tract that is marked by fever, chills, and a generalized feeling of weakness. Centers for disease control and prevention influenza flu homepage. Influenza was discovered not by a direct study of the disease. Influenza b causes milder disease and affects only humans, primarily children. Influenza pandemics occur when the virus undergoes a dramatic change that results in fewer people having immunity to infection. Typical influenza disease is characterized by abrupt onset of fever, aching. Influenza the flu is a contagious respiratory illness caused by influenza viruses.
Influenza A B Influenza Disease
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