What are the different types of influenza?
Generally speaking, influenza refers to the flu, which is typically categorized into types A, B, C, and D. A detailed breakdown is as follows:
1. Influenza A
Symptoms of influenza A may be relatively severe, including high fever, sore throat, and coughing. The influenza A virus mutates easily and spreads quickly and widely.
2. Influenza B
Symptoms of influenza B are generally milder compared to influenza A, mainly including fever, headache, and fatigue. It primarily spreads locally among people and has a relatively lower mutation rate.
3. Influenza C
Influenza C is relatively uncommon, with symptoms such as high fever, body aches, and headache. It usually resolves on its own. Human infections are relatively rare and often occur sporadically.
4. Influenza D
Influenza D is quite rare and primarily infects livestock such as cattle, though it can occasionally infect humans. Symptoms in humans vary due to individual differences but are generally atypical.
In daily life, it is advisable to avoid crowded places as much as possible. If necessary, wearing a mask is recommended. Maintaining good indoor air circulation, regularly opening windows for ventilation, engaging in regular physical exercise, maintaining a balanced diet, ensuring adequate sleep, and enhancing immune function are all important preventive measures.