Ключевые слова: allergy, art, background, care, clinic, cold, contour, danger, disease, disposable, doctor, epidemic, equipment, face, flat, flu, food, health, healthcare, hospital, hygiene, icon, illness, illustration, infectious, influenza, isolated, line, linear, lineart, long, mask, medical, medicine, object, outline, pollution, protection, protective, safety, shadow, sick, sickness, sign, surgeon, surgical, symbol, virus, white,