Ключевые слова: alert, area, attention, bacteria, beware, bio, biohazard, biologic, biological, biology, black, caution, chemical, contamination, danger, dangerous, epidemic, forbidden, hazard, hazardous, health, icon, illustration, isolated, lab, label, laboratory, medical, notice, poison, protect, protection, radiation, research, restricted, risk, safety, science, security, sign, substance, symbol, toxic, virus, warn, warning, waste, yellow, zone,