September 2020—The clinical features and immune responses of people infected with SARS-CoV-2 who are asymptomatic are under investigation since people without disease symptoms can unknowingly spread the virus. As of Aug. 3, there were 17,965,128 confirmed COVID-19 cases worldwide, 4,749,138 of which were in the United States. The majority of those with SARS-CoV-2 infection have mild to severe respiratory illness with fever, cough, and shortness of breath, which appears two to 14 days after exposure. The authors conducted a study in which they described the epidemiological and clinical characteristics, viral levels, and immune responses in 37 asymptomatic people to better understand the clinical features and immune responses of people who are infected with SARS-CoV-2 and asymptomatic. The 37 asymptomatic people, all in the Wanzhou district of China, were diagnosed with RT-PCR–confirmed SARS-CoV-2 infections but had no relevant clinical symptoms in the preceding 14 days or while quarantined at the government-designated hospital for centralized isolation in Wanzhou.