Ключевые слова: blood, dead, deadly, disease, doctor, epidemic, fever, flu, health, healthcare, human, hygiene, ill, illness, infected, infection, influenza, lab, mask, medical, mers, novel, outbreak, pandemic, period, prevention, quarantine, recovery, respiratory, risk, sample, sars, sick, sickness, spread, stop, swab, symptoms, syndrome, test, vaccine, viral, virology,