Question

Flies do not bite us,but still they spread diseases.how?

Answer 1

Flies carry germs as they are always seen near garbage.These flies when sit on our food or hands act as carriers of disease causing germs .This how they spread disease.

Answer 2

Flies have a peculiar system of feeding itself. At first, they release saliva and digestive juices over food and then sponges up the resulting solution.

One can well imagine what we are eating after a fly is taking a ‘sip’ of our food.

Because of the way they eat, flies contaminate large amounts of food. They carry germs of several deadly diseases and cause millions of deaths every year.