Ключевые слова: alert, biology, care, caucasian, classification, clinic, concept, contagious, diagnose, diagnosis, disease, disease x, doctor, epidemic, face, flu, health, health care, healthcare, holding, illness, infected, infection, infectious, inscription, mask, medical, medicine, microbiology, mutant, mutation, new, nurse, outbreak, pandemic, pathogen, research, sickness, sign, strain, technology, threat, topic, treatment, unknown, virus, warning, woman, word, x,