Food contaminated by flies, is greater than from rodents & crawling insects combined. Flies have a major economic impact on this industry. Not only food damage but passenger perception, flies means dirt and unsatisfactory condition
POSSIBLE SIGNS
The presence of files indicate unhygienic condition in surroundings. The fly mechanically carry various germs due to its hairy and spiny body & legs. Habit of vomiting or regurgitating on food to liquefy solid food for easy absorption. Habit of sitting on filthy waste and again on prepared food. It is one of the dangerous insects as Vectors.
POTENTIAL HARM
Diseases spread or transmitted by files are: Bacteria of Typhoid, Cholera, Dysentery, Gastroenteritis and viruses of polio, Jaundice, Diarrhea, Trachoma, Amoebiasis, Parasitic worms i.e. mostly the stomach problems.