Influenza B, also known as influenza B virus, is a respiratory infectious disease caused by influenza B virus. It usually presents with fever, cough, sore throat, runny nose, headache and other symptoms. Although influenza B is less common than influenza A, it is still a serious health threat, especially among children, the elderly, and the frail.
Influenza B spreads mainly through airborne droplets, such as those produced when coughing, sneezing or talking. It can also be spread by touching items or surfaces that are contaminated with the virus and then touching your own mouth, nose, or eyes.
Symptoms of influenza B include fever, headache, cough, sore throat, runny nose, muscle aches and fatigue. These symptoms usually disappear within 1-2 weeks after infection, but can sometimes lead to serious complications such as pneumonia, heart disease, etc.

How to Prevent Influenza B

1. Get a flu vaccine
The most effective way to prevent influenza B is to get the flu vaccine. The flu vaccine can strengthen the body's immunity and reduce the risk of infection and transmission. Annual influenza vaccination is recommended, especially for children, the elderly, and those with frail health.
2. Maintain personal hygiene
Maintaining good personal hygiene habits is one of the important measures to prevent B influenza. Wash your hands frequently, especially after touching objects in public places or with other people, and avoid touching your eyes, nose, and mouth. When you cough or sneeze, you should cover your mouth and nose with a tissue, throw the tissue immediately into the trash, and wash your hands.
3. Avoid contact with patients
The influenza B virus is mainly spread through air droplets, so avoiding contact with sick people is an effective way to prevent influenza B. In public places, such as shopping malls, buses, etc., try to avoid contact with people who cough or sneeze, and try to keep your distance.
4. Strengthen exercise and nutrition
A strong body and good nutrition can improve the body's immunity and reduce the risk of infection and spread of diseases. It is recommended to exercise appropriately every day, maintain healthy eating habits, eat more fruits and vegetables, and ensure adequate sleep.
5. Seek medical treatment promptly
If you find that you have symptoms of influenza B, such as fever, cough, sore throat, etc., you should seek medical treatment in time. Doctors can prescribe appropriate drugs or treatments based on symptoms to help patients recover quickly and reduce the risk of spreading to others.
For people who have been infected with influenza B, treatment focuses on rest and care to reduce symptoms and speed recovery. However, if complications from influenza B are severe, such as pneumonia or heart disease, hospitalization may be required. In addition, some antiviral drugs can also be used to treat influenza B.