Asymptomatic Individuals with Coronavirus Disease‑19 as Infectious Cases and Encouragement Immunity Hypothesis

Asymptomatic individuals with coronavirus disease‑19 (COVID‑19) play a significant role in viral transmission. These individuals are in the incubation period as healthy. Until now, the immune responses of asymptomatic individuals have not been fully understood, and research evidence is very lacking but few studies have indicated increases in the number of lymphocytes in the blood, …