Ключевые слова: 19, 2019, background, bacteria, blurred, colorful, concept, conceptual, contagion, contagious, contagiousness, corona, coronavirus, covid, dangerous, dark, design, disease, epidemic, epidemiology, formulas, graph, graphic, green, hazard, health care, infect, infectious, infectivity, lethal, medical, microbiology, ncov, outbreak, pandemic, pathogenic, pneumonia, political, red, research, scattered, screen, splash, stages, study, viral, virology, virus, viruses,