What virus causes novel coronavirus infection?

Generally, novel coronavirus infection is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). A detailed analysis is as follows:

Novel coronavirus infection is caused by the severe acute respiratory syndrome coronavirus. This type of virus primarily spreads through respiratory droplets and close contact. After entering the human body, the virus invades epithelial cells of the respiratory tract and uses the host cell's machinery to replicate itself, subsequently spreading to the lungs and other organs. The immune response triggered during viral replication, along with direct viral damage, leads to symptoms such as fever, cough, and fatigue. Individuals with weakened immune systems may develop more severe lung infections. Symptom presentation varies significantly among individuals.

Daily personal protection is essential: wear masks when going outdoors and avoid crowded places. Wash hands frequently to maintain hand hygiene, regularly open windows for ventilation indoors to ensure adequate air circulation. Maintain a balanced diet to ensure sufficient nutrition, follow a regular sleep schedule, avoid excessive fatigue, and strengthen overall immunity. If infected, rest at home or seek medical attention promptly depending on symptom severity. Drink plenty of warm water to promote metabolism, consume light and easily digestible food, and avoid spicy or irritating foods to support recovery.