Ключевые слова: adult, arm, campaign, care, caucasian, close up, concept, disease, doctor, dose, epidemic, guy, hands, health, healthcare, hospital, illness, immunity, immunization, indoors, infection, injection, male, man, medic, medical, medicine, nurse, pandemic, patient, plaster, pneumonia, procedure, prophylactic, protection, receiving, remedy, research, risk, senior, service, syringe, treatment, vaccination, vaccine, virus,