Ключевые слова: bacteria, branch, breath, breathing, care, clinic, concept, conifer, contamination, danger, defense, disease, disposable, epidemic, equipment, face covering, face mask, flu, germ, hanging, health, health care, hygiene, ill, individual, infection, isolated, left, mask, medic, medical equipment, medicine, no people, outbreak, pollution, prevention, procedure, protect, protection, respiratory, safe, safety, self care, surgical, textile, toxic, tree, uniform, virus, white,