> where does those food borne diseases occur ? restaurants, home kitchens, ?
> by the ingestion of  foods that have been cooked or frozen improperly not
in
> foods that have their cells still whole .

Personally, I believe that food-borne illness stems from a lesser extent to
environmental pollution (i.e., mercury in fish, heavy metals in shellfish,
pathogens in soil...) and to a greater extent to the stress of factory
farming.  Factory farming creates conditions of overcrowding, an unnatural
diet, and an immunocomprimised state; preconditions to the development of a
disease state (ex. colonization with pathogenic microorganisms).

Meat (muscle) is sterile tissue, whether it be from an infected or
uninfected animal.  Meat can get contaminated during slaughtering
(evisceration), when gastrointestinal contents can cross-contaminate sterile
muscle.  Chances are much greater that factory-farmed animals are colonized
by pathogens, than by wild or more naturally raised animals.

Still, these pathogens are on the surface of the meat (like a steak or
roast) and a quick searing under heat should kill/inactivate them.  Ground
meats are always the exception.  Grinding distributes surface pathogens
throughout.  You must therefore always cook ground meat to a minimum
internal temperature of 165F.  Jean-Claude, please tell me that you do this.

The rise in food-borne illness associated with fruits and vegetables is
probably a function of cross-contamination at the point of preparation
(i.e., using the same cutting board or not washing hands after handling raw,
infected meat before handling vegetables).  Another cause is more virulent
strains of pathogens in the soil where the food was grown (ex. food grown in
soil fertilized by "night soil" (uncomposted human waste).  Most of the
fruits and vegetables implicated in food-borne illness are eaten raw because
cooking kills pathogenic bacteria and viruses.

In my opinion, eating wild or naturally raised animals and organically-grown
produce dramatically cuts the risk of food borne illness.

Rob