Ключевые слова: advertising, allergies, background, bacterium, banner, blue, bronchitis, card, cough, danger, design, dirt, disease, doctor, dust, female, flu, help, layout, mask, medical mask, medicine, outline, particle, patient, pattern, pharmacy, pieces, portrait, prevention, protection, ready, reliable, rescue, rubbish, runny nose, safety, scratch, silhouette, spores, square, tonsillitis, transparent, virus,