Ключевые слова: america, american, antibiotic, asian, bacterium, biology, china, china virus, chinese, concept, corona, coronavirus, covid 19, covid19, dangerous, detected, diagnosis, disease, doctor, epidemic, fever, flag, flu, health, human, infection, letter, lockdown, medical, organization, pandemic, pathogen, protection, quarantine, saint kitts and nevis, sars, scrabble, sick, test, treatment, vaccination, virus, who, world,