There is a Czech food supplement brand called Diochi which literally uses biohazard symbol as it's logo. It made me smiling when I found out this. I wonder if they were trolled by their graphics designer or what.
Further down their webpage, an explanation of the logo:
„The three ellipses - 3 basic principles by which primordial matter differentiated. The sacred trinity found in all religious and philosophical systems. They are rotated to each other at an angle of 120°, expressing their harmonious relationship.
The circle within each ellipse - symbolizing the interconnectedness of the microcosm and macrocosm.
The open ellipse and the circle to the outer space - expresses the necessity of constant energy exchange with the environment. When this requirement is violated, any existence ceases to exist.“
https://www.diochi.cz/cs/o-nas/zapomenute-jmeno