Ключевые слова: area, background, bacterial, banner, beware, bio, biohazard, biological, button, catastrophe, caution, chemicals, danger, dangerous, death, disaster, emblem, environment, environmental, epidemic, hazard, icon, illustration, infected, infection, infectious, label, mortal, pandemia, pandemic, pictogram, polluted, pollution, risk, sign, symbol, toxic, virus, warning, waste, weapon, yellow, zone,