This study is a single-center, open-label, randomized controlled clinical study to evaluate the effect of Paxlovid on the virus-negative time and disease progression in uremic patients infected with SARS-CoV-2 (omicron variants).

This study will enroll maintenance hemodialysis patients infected with SARS-CoV-2 (omicron variants).

After signing the informed consent form, the qualified subjects will be randomly stratified 1:1 to standard-of-care (SOC) or SOC plus Paxlovid for five days.

Inclusion Criteria:

• Sign informed consent. Age ≥ 18 years old. COVID-19 (nucleic acid test positive) was diagnosed before randomization. At least 1 symptom or sign of COVID-19 at the time of being enrolled into the study(symptoms and signs related to COVID-19 including cough, expectoration, dyspnea, fever, chills, fatigue, muscle soreness, diarrhea, headache, sore throat, stuffy nose, runny nose, etc.).

Exclusion Criteria:

• History of active liver disease, including chronic or active hepatitis B or C, primary biliary cirrhosis, Child-Pugh B or C, or acute liver failure.

HIV infection and the viral load is greater than 400 copies/ml. Suspected or confirmed active systemic infections that may have an impact on the study evaluation except for COVID-19.

Acute heart failure, respiratory failure, severe chronic kidney disease, and cardiovascular disease caused by uremia-related complications.

Allergic to any ingredients of Paxlovid.