What are the symptoms of the incubation period of influenza A?

Generally speaking, swine flu refers to influenza A, whose incubation period symptoms include fever, cough, sore throat, muscle aches, fatigue, and weakness. A detailed analysis is as follows:

1. Fever

Patients may experience fever during the incubation period, with body temperature rapidly rising to 38°C or higher. Fever is a defensive response of the body to viral invasion, and the elevated temperature helps inhibit viral replication and spread.

2. Cough

Due to the inflammatory response in the respiratory mucosa caused by viral infection, the cough reflex may be stimulated, manifesting as a dry cough or cough with small amounts of phlegm, which helps clear the virus from the respiratory tract.

3. Sore Throat

Influenza A virus infection can cause inflammation of the throat mucosa, which may stimulate nerve endings and cause throat pain and discomfort, especially noticeable during swallowing.

4. Muscle Pain

Due to the systemic inflammatory response caused by viral infection, patients may experience muscle aches or general malaise, particularly affecting the muscles of the back, legs, and arms.

5. Fatigue and Weakness

As the immune system consumes significant energy to combat the virus and due to the discomfort caused by the infection itself, patients may experience severe fatigue and weakness, along with low energy levels during the incubation period.

In daily life, it is important to enhance immunity by maintaining a balanced diet, engaging in moderate exercise, and ensuring adequate sleep. Strengthening the body's resistance helps reduce the risk of contracting influenza A.