How many days does it usually take for influenza A to turn negative?
Sep 27, 2022
Source: Cainiu Health
Dr. Guo Xiheng
Introduction
The time it takes for individuals to test negative varies due to differences in physical constitution. A small minority of influenza A patients may test negative within about 3 to 5 days as symptoms rapidly improve, while the majority recover within approximately 7 to 10 days. However, some severe cases may develop various complications, leading to prolonged illness and even life-threatening conditions. Influenza A is an acute respiratory infectious disease caused by infection with the influenza A virus.
Due to individual differences in physical constitution, the time it takes to test negative varies from person to person. A very small number of patients with influenza A may test negative within 3–5 days, while most recover within about 7–10 days. However, some severe cases may develop various complications, leading to prolonged illness or even life-threatening conditions. Influenza A is an acute respiratory infectious disease caused by infection with the influenza A virus, mainly characterized by high fever, chills, headache, dizziness, fatigue, loss of appetite, and body aches. Once diagnosed, treatment should begin as early as possible.
1. Symptomatic Treatment
For high fever, physical cooling methods or antipyretic medications can be used. For severe cough and sputum production, expectorant and cough-suppressing drugs are recommended. Oxygen supplementation via nasal cannula can be administered in cases of oxygen deficiency.
2. Antiviral Therapy
Antiviral treatment should begin as early as possible, ideally within 48 hours after symptom onset; delayed administration often proves ineffective. Dosages for adults and children differ and must be strictly followed according to instructions.
In daily management, patients with influenza A should take their medication regularly and not neglect treatment. Body temperature should be monitored consistently; if it exceeds 38.5°C, antipyretics should be taken under medical guidance. Regarding diet, patients should consume light, easily digestible foods and increase intake of vitamin-rich fruits and vegetables to support nutrition. Drinking plenty of warm water is encouraged, while spicy and irritating foods should be minimized. Moreover, it is crucial to avoid crowded places to reduce the risk of infection.
