Ключевые слова: bacteria, biology, caution, china, concept, concepts, contagious, contamination, copyspace, corona, coronavirus, danger, dangerous, disease, doctors, epidemic, flu, global, hand, hazard, health, healthcare, human, illness, infectious, label, laboratory, medical, medicine, message, microbiology, nurse, palm, prevention, protect, risk, safe, safety, science, scientific, spreading, stay, viral, virus, word,