Ключевые слова: adult, antibody, arm, assistance, care, community, concentration, concepts, contemplation, customer, doctor, epidemic, females, giving, headshot, horizontal, hygiene, illness, indoors, injecting, lifestyles, liquid, males, medicine, nurse, occupation, patient, people, prevention, problems, protection, quarantine, research, safety, symptom, syringe, togetherness, uniform, vaccination, virus, volunteer, women, working,