The strategy of our study is to use traditional Chinese medicine tea to regulate physical fitness and strength can be enhanced to help patients with mildly diagnosed COVID-19 variant virus to achieve self-recovery ability and avoid the development of moderate and severe symptoms.

According to the "Interim Guidelines for the Clinical Treatment of Novel Coronavirus SARS-CoV-2 Infection" published by the CDC of the Ministry of Health and Welfare on June 23, 2021, it can be classified into mild, moderate, severe and extremely severe according to the classification of its related clinical manifestations.

Current clinical studies have found that COVID-19 primarily attacks the bronchioles and alveoli of the lower respiratory tract. In severe cases, it may induce an inflammatory response, leading to pulmonary airway and alveolar damage, and even pulmonary fibrosis.

The strategy of our study is to use traditional Chinese medicine tea to regulate physical fitness and strength can be enhanced to help patients with mildly diagnosed COVID-19 variant virus to achieve self-recovery ability and avoid the development of moderate and severe symptoms.It may reduce the expenditure of health insurance and medical expenses, and more importantly, if it can be administered timely to block the progression of the disease when mild-to-moderate symptoms occur, it can also reduce the burden of hospital medical care.

Inclusion Criteria:

• Aged over 20 years old, according to the guidelines of the Epidemic Command Center, during home isolation and self-epidemic prevention or home quarantine period, use the home novel coronavirus antigen rapid screening reagent to test positive, and after the medical staff confirms the relevant symptoms or the PCR test is positive, it is determined as Those who were mildly diagnosed and who did not use antiviral drugs were given tea immediately.

Exclusion Criteria:

• Patient characteristics: Exclude women under the age of 20, incapacitated, pregnant or breastfeeding
• Disease characteristics: subjects who have been diagnosed with mental illness by Western medicine, and who have long-term diarrhea or long-term use of traditional Chinese medicine
• Environmental characteristics: other conditions that prevent the patient from cooperating. Such as being unsuitable after screening, not signing the subject's consent form, etc.