Ключевые слова: 19, bacteria, biohazard, concept, contagion, contamination, copy, corona, coronaviridae, coronavirus, covid, covid19, daignosis, deadly, disease, epidemic, exam, fever, health, incubation, infection, letter, lung, medical, medicine, mers, novel, oms, outbreak, pandemic, pathogen, pneumonia, pulmonary, quarantine, red, respiratory, sign, space, stethoscope, stop, syringe, tablet, thermometer, vaccine, virology, virus, world,