When contaminated with e. coli strains toxic to humans, fresh meat should be cooked to at least in order to prevent any food intoxication?

The answer here is 160 degrees.

To destroy E.coli strain thoroughly, meat should be cooked generally until the pink color and juices no longer remains. Specifically, the cooking thermometer should read 160 degrees in the thickest part of the meat to ensure the greatest level of prevention and/or protection of an E.coli contamination.

The salt in the sea water dehydrated the sailor because her body could not take in the amount to salt in the sea water