Which is more severe, COVID-19 or influenza A?

　　"COVID-19" refers to infection caused by the novel coronavirus, while "influenza A" refers to type A influenza. Generally speaking, there is no definitive statement regarding which condition is more severe between novel coronavirus infection and influenza A. Both are acute respiratory infectious diseases caused by different viruses, and neither can be universally considered more severe than the other. Detailed analysis is as follows:

　　The novel coronavirus primarily spreads through respiratory droplets and close contact; infection may also occur from contact with virus-contaminated objects. After infection, patients may experience symptoms such as fever, cough, fatigue, difficulty breathing, and muscle pain. Some patients may also develop abnormal sense of smell or taste. The severity of the illness varies among individuals; mild cases may only exhibit minor symptoms, whereas severe and critical cases may experience life-threatening conditions such as respiratory failure and shock.

　　Influenza A mainly spreads through droplets, such as those released when an infected person coughs, sneezes, or speaks. These droplets can be inhaled by others, making them susceptible to infection. Symptoms of influenza A include fever, cough, sore throat, and generalized body aches. Some cases may also present with vomiting, diarrhea, or even life-threatening complications such as respiratory failure and multiple organ dysfunction.

　　In daily life, it is important to ensure adequate sleep, avoid excessive physical exhaustion, and consume more fresh vegetables and fruits such as cabbage, apples, and tomatoes to enhance personal immunity.