Ключевые слова: autumn, breath mask, breathing, care, caucasian, concept, cough, danger, epidemic, face, face mask, flu, forest, health, health care, human, ill, infection, influenza, lifestyle, male, man, mask, medical, medicine, outdoors, pandemic, people, person, portrait, prevention, protect, protection, protective, quarantine, respirator, respiratory, sick, sickness, surgery, surgical, travel, virus, walk, wood,