What are the main symptoms of influenza B?

Generally speaking, "Yi Liu" refers to Influenza B. The main symptoms of Influenza B include fever, cough, sore throat, muscle pain, and headache. If discomfort symptoms appear, it is recommended to seek medical attention at a hospital promptly and receive standardized treatment under a doctor's guidance. A detailed explanation is as follows:

1. Fever

After infection with the Influenza B virus, the body will experience an immune response, leading to dysfunction of the body temperature regulatory center and resulting in fever. Body temperature may reach 39°C to 40°C or even higher, often accompanied by chills and shivering.

2. Cough

Infection with the Influenza B virus can cause an inflammatory response in the respiratory tract epithelial cells, leading to coughing, which is typically dry or accompanied by small amounts of phlegm.

3. Sore Throat

The Influenza B virus can directly infect mucosal cells in the throat, causing localized inflammation and resulting in a sore throat. Additionally, frequent coughing may worsen throat pain.

4. Muscle Pain

Influenza B may cause muscle pain and general weakness in patients. Pain may occur in areas with larger muscle groups, such as the back, arms, and legs, or may manifest as localized pain such as headache, chest pain, as well as generalized body aches and fatigue.

5. Headache

Headache is also a common symptom in patients with Influenza B, which may be related to fever, dehydration, or the effects of inflammatory mediators in the body. When body temperature rises or inflammation increases, blood vessel dilation and heightened nerve sensitivity may lead to headaches.

It is recommended to develop healthy lifestyle habits, maintain a balance between work and rest, and avoid excessive fatigue, which is beneficial to overall health.