Ключевые слова: adult, allergen, allergic, allergy concept, apple tree, aroma, blonde, blooming tree, blossoming, blossoms, breath, carrying, caucasian, closeup, coronavirus, cove 19, cure, disease, disease prevention, epidemic, female, flowering, flowers, fresh air, girl, infection, influenza, mask, medical mask, medicine and science, pandemic, panic, person, petal, portrait, problem, quarantine, relief, respiratory, sick, sneezing, spring, springtime, street, surgical mask, walk, wearing, white, woman, young,