How to Determine if You Have Contracted Influenza A

Influenza A, also known as Type A flu, can generally be diagnosed based on symptoms, medical history, and laboratory tests.

Typical symptoms of Influenza A include sudden high fever, cough, sore throat, headache, muscle aches, fatigue, nasal congestion, and runny nose. To determine if someone has contracted Influenza A, one should primarily pay attention to the presence of these symptoms.

It is important to investigate whether the patient has had contact with individuals infected with Influenza A or has visited areas experiencing an outbreak of Influenza A prior to the onset of illness. If there is a clear history of exposure to Influenza A patients, combined with the presence of related symptoms, it increases the likelihood of Influenza A infection.

A definitive diagnosis of Influenza A typically requires laboratory testing, such as viral nucleic acid testing or antigen testing. These tests can detect the presence of the Influenza A virus from throat swab or nasal swab samples. If the antigen test result is positive, it is highly likely to be an Influenza A virus infection.

If symptoms suggestive of Influenza A occur, it is recommended to seek medical attention promptly and undergo relevant tests for diagnosis. At the same time, it is important to rest adequately, maintain a light diet, and actively cooperate with medical treatment.