covid, 19, coronavirus, stop, symptoms, 2019-ncov, background, bacteria, biohazard, breaking news, careful, caution, china, chinese, concept, contagion, contamination, corona-virus, covid 19, covid-19, covid19, detected, disease, epidemic, flu, hazard, health, infected, infection, infectious, medical, ncov, novel, outbreak, pandemic, pneumonia, prohibition, protection, quarantine, respiratory, risk, secure, serious, syndrome, text, vaccine, virus, world, wuhan
