The Food borne microorganism is available in the animal intestine. The meat and the poultry products are generally contain the contaminated food while slaughtering due to contact of intestines content of other animal. If you washed fruit and vegetable with sewage water or any polluted water than the possibility of contamination should be increase in the fruits and vegetables you eat. The Food borne microorganism also possible while it spread from person infected with contamination and it introduce to another person. It is also spread through the kitchen, the microorganism can be spread in the food from using different types of kitchen knife, and various other utensils prepares two between not to wash the surface or the utensil. Food that well cooked is more contaminated it any raw food gets connected with the cooked food.
The bacteria microorganisms need to multiply to a bigger numeral in enough are the existence cause in front of the disease in food. It gives warm condition and more nutrient supply; reproduce by divides an every half hour bacterium possibly to produce millions of bacteria in 12 hours. Finally, slight pollution food neglects overnight possibly next day it is highly infects. If food promptly were refrigerated, the bacterium cannot multiply the basis.