Influenza is frequently termed as flu, which is an infectious disease caused by the influenza virus. The condition has been shown to regularly catch people during the fall of winter, which is very fast and robust. However, there are namely four different types of influenza viruses, which are Influenza A, B, C, and D (It is known to infect animals)(Grohskopf, 2016). It has been known that some of the influenza viruses A and B, particularly for humans, are significant causes for seasonal epidemics in the states. However, the Influenza virus A is also known to cause an influenza pandemic from infecting people(Grohskopf, 2016).The influenza virus C is known for creating a mild respiratory illness, but it is not known to causing an epidemics. It is also in response that the disease often attacks the respiratory system, which is the nose, lungs, and even the throat. Most individuals confuse flu with a bad cold, which is familiar to many(Grohskopf, 2016). However, the symptoms associated with flue are such as sore throat, cough, and headache, blocking in the nose, high body temperature, aching in the limbs and joints, and gastrointestinal changes(Grohskopf, 2016).
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