1-Diseases caused by Contaminated Food:

    a- Tuberculosis : It is transmitted to a healthy person through foods contaminated with the microbe causing the disease, especially by drinking contaminated milk.

    b- Food Poisoning : It is the result of microbial or enzymatic activities causing food decay, fermentation, or it may be due to the multiplication of harmful microbes as Salmonella.

    c- Intestinal Diseases : These are transmitted through food contaminated with foeces. Examples of these diseases are cholera, typhoid, dysentery and intestinal warms.