Ключевые слова: background color, color enhanced, colour manipulation, contagion, december 2013 release, disease, diseased, electron micrograph, epidemic, healthcare, healthcare and medicine, horizontal, hygiene, illness, infection, magnify, magnifying glass, micro organism, microbiology, micrograph, no people, nobody, numeral, one object, orthographic symbol, parainfluenza, paramyxovirus 4a, science, single object, studio shot, symbol, tem, transmission electron micrograph, unwell, virus,