Pest can cause what kind of contamination?

I don't know maybe you can browse it

pest can cause both Biological contamination and Physical Contamination.

Explanation:

Biological contamination is caused by the substance which is produced by pests that cause contamination in the food. Physical contamination in which food is contaminated physically when the pests such as rats and mice leave feces that cause contamination of food.

pests are animals or insects that cause damage to food, crops, the metabolic substances which are released by the pests cause contamination of food.

some of the common pests are rodents, insects, fungi, mites.