How many days does it take to regain taste after contracting influenza A?

Mar 03, 2025 Source: Cainiu Health

Dr. Ren Yi

Introduction

Influenza A refers to Influenza A (H1N1). Patients with Influenza A (H1N1) may recover their sense of taste 1 to 2 weeks after their condition starts to improve. During flu season, it is advisable to avoid visiting crowded places with poor ventilation. If attendance is necessary, wearing a mask is recommended. Additionally, maintaining good indoor air circulation by regularly opening windows can help reduce viral accumulation indoors.

Generally, "swine flu" refers to influenza A. The sense of taste may recover within one to two weeks after the condition starts to improve. The detailed explanation is as follows:

Influenza A is an acute respiratory infectious disease caused by the influenza A virus. After infection, the virus may invade mucosal cells of the upper respiratory tract, triggering an inflammatory response. When this inflammation affects the nerve endings or taste receptors related to taste sensation, it may lead to reduced or lost taste sensation. As the body's immune system clears the virus, the inflammation gradually subsides, and the damaged nerves and cells begin to repair themselves, allowing taste sensation to gradually return.

In general, if a patient's illness is mild and their physical condition is good, with active treatment and adequate rest, inflammation may subside quickly, and taste sensation may start to recover within about one week. However, for patients with more severe illness, underlying medical conditions, or weaker immune systems, the inflammation may last longer, and the repair of nerves and cells may be relatively slower, requiring up to two weeks for taste sensation to recover.

During flu season, try to avoid going to crowded places with poor ventilation. If you must go, it is recommended to wear a mask. At the same time, maintain good indoor air circulation by regularly opening windows to ventilate and reduce viral accumulation indoors.

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