Signs of recognition and ways to prevent influenza B
(Baonghean.vn) - Influenza B is a respiratory disease caused by a virus. Unlike influenza A virus, which has many strains (H1N1, H3N2, H5N1, etc.), influenza B virus has only one type of strain. Influenza B virus circulates year-round, and the changing weather is a favorable factor for bacteria to grow, spread, and create an influenza epidemic.
 |
| This virus has little change in antigenic structure, and can only cause common flu, has a simple progression, and can combine with other flu viruses to cause respiratory diseases. |
 |
| When infected with the virus, the incubation period when flu symptoms appear is from 1 to 3 days. The disease lasts for about 3 to 5 days. |
 |
| Everyone is susceptible to influenza B virus, however children under 5 years old, pregnant women, the elderly and people with chronic diseases are the groups of people most susceptible to influenza B infection. |
 |
| - Fever: May be mild or high fever. - Upper respiratory tract infection: Sore throat, cough, runny nose. - Lower respiratory tract infection: Bronchitis, pneumonia. |