Ключевые слова: airborne, anatomy, bacteria, biology, body, breath, cellular, cold, contagion, contamination, coronavirus, cough, crisis, danger, disease, droplet, emergency, epidemic, flu, germ, global, health, healthcare, human, hygiene, illness, infection, medical, medicine, microorganism, microscopic, mouth, oral, pandemic, pathogen, prevention, respiratory, risk, saliva, science, spread, throat, transmission, viral, virus, warning,