Ключевые слова: 2021, arm, care, clinic, clinical, concept, country, disease, doctor, drug, epidemic, flag, flu, germany, hand, health, hospital, human, illness, immunization, infection, injection, lab, laboratory, mask, medical, medicine, needle, outbreak, pandemic, patient, people, protection, quarantine, research, science, shot, syringe, test, treatment, vaccination, vaccine, virus,