Ключевые слова: biology, blue, chemical, chemist, clinic, concept, coronavirus, covid, covid19, disease, doctor, epidemic, flu, global, hand, health, hospital, illness, infection, injection, lab, laboratory, man, mask, medical, medicine, microbiology, needle, nurse, outbreak, pandemic, patient, people, prevention, protection, research, respiratory, sample, science, scientist, syndrome, treatment, vaccine, vial, virus,