Ключевые слова: 19, aid, ambulance, clinic, cold, concept, control, coronavirus, covid, covid19, customs, diagnosis, discovery, disease, doctor, epidemic, fever, flu, gloves, heat, hospital, illness, infection, inflammation, laboratory, look, man, mask, medical, negative, nurse, pandemic, patient, pneumonia, positive, protection, protective, reception, risk, safety, spread, temperature, thermometer, treatment, vaccine, virus, visitor, woman,