Causes of Influenza

Flu viruses move in the air. Transmission most commonly occurs due to people sneeze without covering the mouth with a tissue or handkerchief. Virus in droplets water that ejected when coughing, sneezing or talking will move into the air and can be attached to someone else.

Transmission can occur from direct inhalation of the virus from the sneezing patients or from the germs that stick to the things that we touch, e.g. telephone or computer keyboard and then move to the nose and mouth.

Influenza caused by three types of viruses: influenza A, B and C. Type flu causes the most serious with the most acute symptoms. It can cause a pandemic that could swallow the loss of life and can attack those who are in the age range 10 to 40 years. For example in 1918 flu pandemic that toke 50 million lives worldwide. Type B causes smaller impacts. Symptoms occur nearly equal in type A, but more lighter. Type C is the lightest, symptoms usually only cold and is not associated with major epidemics.

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