Influenza Essay -- essays research papers

In grippeenza Ininfluenzaenza, norm each(prenominal)y called the flu, the influenza virus endeavors an infection in the respiration tract. Even though the influenza virus can sometimes be compared with the common cold. It also can cause a more severe illness or death. During this past century, epidemics took mark 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 sight 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 in that respect where 34,000 deaths in the United States. The emergence of the Hong-Kong flu marked the beginning of the of the desolate 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 two previous pandemic viruses that I me ntioned. There are a few reasons for the hemagglutinin changed from the Asian flu strain. The neuraminidase stayed the same. Well the only explanation would be that people affected 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 one C F to 103 F), cough, sore throat, headache, stuffy and running nose, muscle soreness and fatigue....