The proportion of infected people who do not show symptoms is currently unknown and under study. The Korea Centers for Disease Prevention and Control (KCDC) reported that 20% of all confirmed cases remained asymptomatic while hospitalized.
Uwiano wa watu walioambukizwa amabao hawaonyeshi dalili haujulikani kwa sasa na unafanyiwa utafiti, na Vituo vya Korea vya Udhibiti na Uzuizi wa Ugonjwa (KCDC) vikiripoti kwa asilimia 20 ya watu wote waliothibitishwa waliendelea kukosa kuonyesha dalili wakiwa hospitalini.