Putting my conspiracy theorist hat on
How about this, how long have there been bacteria? How long have there been humans? When did human learn about bacteria? But we had stories of foul disease causing water and food for a long time.
good point
How about this, how long have there been bacteria? How long have there been humans? When did human learn about bacteria? But we had stories of foul disease causing water and food for a long time.
good point