Ключевые слова: care, clinic, clinical, concept, disease, dose, drug, epidemic, equipment, flu, hand, health, healthcare, hepatitis, hospital, illness, immunity, immunization, infection, influenza, injection, laboratory, liquid, man, mask, medical, medication, medicine, needle, pandemic, patient, pharmacy, pneumonia, prevention, protection, research, science, surgery, syringe, therapy, treatment, vaccination, vaccine, vial, virus, whooping cough,