What are the aftereffects following recovery from COVID-19?

COVID-19, or novel coronavirus infection, may lead to sequelae after recovery, such as diminished taste, pulmonary fibrosis, and loss of lung function. The details are as follows:

1. Diminished taste

When the novel coronavirus damages cranial nerves, the virus binds to sialic acid receptors, accelerating the degradation of taste buds and resulting in reduced taste sensation. This condition typically resolves spontaneously within 7–10 days.

2. Pulmonary fibrosis

If there is a high viral load in the body, the virus can easily invade alveolar cells, causing structural damage to the lungs. This leads to stiffening of lung tissue and impaired gas exchange. In severe cases, fibrosis develops, accompanied by symptoms such as dry cough and fatigue.

3. Loss of lung function

As pulmonary fibrosis progresses, significant structural changes occur in the lungs, leading to clinical manifestations such as cyanosis or clubbing of the fingers. Lung function becomes compromised, which may even affect life expectancy.

In addition, myocardial injury may also occur. Once infected with the novel coronavirus, individuals should seek immediate medical diagnosis, undergo isolation, and strictly follow medical treatment recommendations.