It is easy for people to have a flu in spring. We should learn something to protect ourselves from it.

▲Typeset of flu virus:

Type A flu: This virus includes H1N1 and sub-type H3N2.

Type B flu: This virus can cause seasonal epidemics.

Type C flu: This virus causes epidemics that are generally at a stable level in different years.

Type D flu: This virus can infect pigs and cattle but not human beings.

▲Spreading:

◆Two main sources of seasonal flu epidemics(流行):flu patients and infected(被感染的)people in sick.

◆The airway is the main route of spreading.

◆Common latent (潜伏)period:1 to 4 days, 2days on average.

◆Direct and indirect connect with the mouth , nose and eyes.

▲People who are easy to have a flu:

Children, the elder, pregnant women, medical workers, patients with some diseases such as breathing, diabetes and heart disease.

▲Good personal healthy care:

◆Wash hands frequently;

◆Avoid crowed in flu season.

◆Cover mouth and nose and don't touch them after the beginning of the flu:

◆Reduce contacts with people who are easy to have flu;

◆Wear masks if you should go to the hospital.