Ключевые слова: 19, blood, concept, diagnostic, disease, drug, epidemic, flu, health, health care, illness, immune system, immunization, infect, infection, infectious, injection, injection syringe, laboratory, medical, medical research, medication, medicine, ncov, novel, outbreak, pandemic, pneumonia, prevention, protection, quarantine, sars, sarscov2, science, scientific, syringe, therapy, treatment, vaccination, vaccine, virology, virus,