» JENTERA
"...If work is an effort then being concerned with avoiding is an act of corruption..."
1966 
In 1966 the the Dow Chemical company developed the Biohazard Symbol for their containment products. Charles Baldwin, an environmental-health engineer who contributed to its development explained, “We wanted something that was memorable but meaningless, so we could educate people as to what it means.”
Biohazard Symbol History