Ключевые слова: aid, art, bacteria, beaker, blood, bottle, chemistry, china, color, colorful, computer, contour, corona, coronavirus, disease, equipment, flask, glass, glassware, glove, hand, health, hiv, icon, infection, injection, isolated, laboratory, line, linear, lung, medical, medicine, microbe, needle, outline, pneumonia, pop, popart, rubber, science, set, technology, test, tube, vaccine, virus,