Science didn't discover that until two men named Pasteur and Koch in the late 1,800's. Some doctors were washing their hands in a bowl of water and spreading the germs. It wasn't until the invention of the microscope and the science of bacteriology that doctors started washing under RUNNING WATER. Leviticus was written around 1,490 B.C. SCIENCE WAS ABOUT 3,000 YEARS BEHIND! Isn't it embarrassing how science always lags about 2000 years behind.