How to Identify Whether Infected with Influenza A in 3 Steps
Jan 21, 2025
Source: Cainiu Health
Dr. Ren Yi
Introduction
Influenza A refers to Type A influenza. Generally, there is no such saying as "three methods to identify whether infected with Influenza A." Usually, methods such as observing symptoms, tracing contact history, determining the epidemic season, laboratory tests, and imaging examinations can be used to identify whether one is infected with Influenza A. If feeling unwell, it is recommended to seek timely medical treatment.
Influenza A refers to Influenza Type A. Generally, there is no saying such as "how to identify Influenza A infection in three steps." Usually, methods such as observing symptoms, tracing contact history, determining the epidemic season, laboratory tests, and imaging examinations can be used to identify Influenza A infection. If discomfort occurs, timely medical consultation is recommended for corresponding treatment under a doctor's guidance. Detailed analysis is as follows:
1. Observe symptoms: Influenza A typically causes symptoms such as high fever, cough, and generalized body aches. Fever generally lasts for 3-5 days. The cough may be dry or accompanied by a small amount of white mucus sputum. Patients may feel muscle soreness and fatigue in limbs, lower back, and possible joint pain.
2. Trace contact history: Influenza A is highly contagious, primarily spread through droplets. If a patient has had close contact with an infected individual, the risk of infection is relatively high.
3. Determine epidemic season: Influenza A has certain seasonality and commonly occurs during autumn and winter seasons. If a patient develops suspected Influenza A symptoms during the flu season, the probability of infection is relatively higher.
4. Laboratory tests: Samples collected from nasal or throat swabs can be tested for Influenza A virus nucleic acid using polymerase chain reaction (PCR). A positive test result confirms infection.
5. Imaging examinations: Imaging tests are primarily used to assist in determining disease severity and whether complications have occurred. In the early stages of Influenza A infection, pulmonary imaging may appear normal. However, as the disease progresses, if pneumonia complications develop, imaging may reveal patchy shadows, ground-glass opacities, or other changes in the lungs.
It is recommended that Influenza A patients ensure adequate sleep and rest as much as possible to help the body recover strength and promote faster recovery.
