What is Influenza A?
Recently, a colleague caught a cold with symptoms such as coughing, headache, and loss of appetite. After visiting the hospital, they were diagnosed with influenza A. May I ask what influenza A is?
Doctor's answer (1)
Influenza A, commonly known as "swine flu," is an acute respiratory infectious disease caused by the Influenza A virus.
1. Etiology: Influenza A is primarily caused by two subtypes, H1N1 and H3N2. It can spread through direct contact with the pathogen, respiratory droplets, or contact with virus-contaminated objects. The Influenza A virus regularly undergoes mutations, leading to the emergence of new strains.
2. Symptoms: The symptoms of influenza A resemble those of the common cold but are generally more severe. They include high fever, headache, cough, sore throat, muscle pain, fatigue, drowsiness, and loss of appetite. Compared to the common cold, influenza A develops more rapidly and causes more severe symptoms.
3. Prevention and Treatment: One of the most effective ways to prevent influenza A is to receive the influenza vaccine, especially for high-risk populations. Additionally, maintaining good personal hygiene practices, such as frequent handwashing, avoiding contact with sick individuals, and wearing masks, can effectively reduce the risk of infection.
If you have any concerns, it is recommended to seek medical attention promptly.
