Ключевые слова: alert, analysis, anti, biohazard, cardiac, cardiology, checkup, clinical, corona, coronavirus, covid19, cure, device, diagnose, diagnosis, diagnostic, disease, doctor, face mask, flu, health, heart, heartbeat, hospital, illness, infection, injection, laboratory, liquid, listen, mask, medical, medicine, pandemic, patient, pneumonia, prevention, protection, science, sick, silver, stethoscope, temperature, tool, treatment, vaccination, vaccine, virus,