Influenza Essay -- essays research papers

Ininfluenzaenza Influenza, normally called the flu, the influenza virus causes an infection in the respiration tract. Even though the influenza virus send packing sometimes be compared with the common cold. It also can cause a more severe illness or death. During this past century, pandemics took place in 1918, 1957, and 1968, in all of these cases there where unfortunately many deaths. The Spanish flu in 1918, killed approximately half a million people in the United States alone. It killed around 20 million worldwide. The Asian flu in 1957, in the United States their 70,000 people died. In 1968 the Hong-Kong flu There where 34,000 deaths in the United States. The emergence of the Hong-Kong flu marked the beginning of the of the strand type A (H3N2) era Different strands of the same virus caused all these outbreaks of influenza. When this virus first emerged. It was associated with fewer deaths than caused by the devil previous pandemic viruses that I mentioned. There are a few r easons for the hemagglutinin changed from the Asian flu strain. The neuraminidase stayed the same. Well the only explanation would be that people impact with the A (H2N2) strain (Asian flu), Built up immunity to the Hong-Kong flu. The influenza virus depending on the severity usually includes fever (around deoxycytidine monophosphate F to 103 F), cough, sore throat, headache, stuffy and running nose, muscle soreness and fatigue....