Ключевые слова: american, arm, boy, child, childhood, children, clinic, corona virus, coronavirus, covid, disease, drug, epidemic, female doctor, flu, hand, health care, healthcare, horizontal, hospital, immunity, immunization, indoors, infection, influenza, injecting, injection, kid, medical, medicine, needle, nurse, pandemic, patient, pediatrician, practitioner, prevention, professional occupation, protection, shoulder, sick, syringe, teen, teenager, treatment, two people, vaccination, vaccine, woman, young adult,