Which of the following is/are the diseases caused by a house fly?
Common cold – Rhinovirus
When a fly sits on food infected with germs, the germs get attached to the hair, bristles, legs, wings and even to the whole body of the house fly. When this infected fly sits on our food, the food becomes contaminated with the germs. If we consume this infected food we will fall ill. In this way, through food and drinks, they spread diseases like cholera, bacillary dysentery, phthisis poliomyelitis etc. So they are harmful insects.