Ключевые слова: abstract, air, anatomy, background, biology, cancer, care, concept, coronavirus, covid, day, design, disease, health, healthy, hospital, human, illness, infection, leaves, lung, medical, medicine, model, month, november, oncology, paper, pastel, pneumonia, pollution, respiration, respiratory, science, shape, sign, skeleton, support, symbol, tb, therapy, treatment, tuberculosis, virus, white, world,