Flies are contagious insects. They are small and can easily travel from one place to another. They have small hair like structures covering their entire bodies. There are hundreds of species of flies and the ones most commonly encountered indoors include houseflies and bluebottles. Other flies that are found near humans and animals are horse flies. Some flies are outright venomous as is the case of the tsetse fly. However most flies are not be poisonous and merely carriers of germs. Flies carry a number of bacteria and pathogens. Any number of them pose dangers to human health. Throughout history flies alongside mosquitoes have been the primary carriers of contagious diseases. The havoc they have wreaked on entire populations far outweighs any damage caused by other larger carriers of diseases. Other carries of diseases include pigs and bats. A large number of domesticated animals have the potential to carry contagious diseases. While on the absence of flies, the contaminants remain isolated and restricted to the animals, the presence of flies nearby means that they can be transmitted to humans.

Flies usually thrive in tropical climates where there is a lot of heat and humidity. The high humidity keeps them active and hydrated. Humidity is also needed for most fly species to breed. Most flies die off in temperate climate zones. This is the reason they are rarely encountered in cold areas. Flies belonging to tropical areas usually hibernate on the winter. A fly can sleep for up to five years at t time after consuming food and water. They reproduce by producing eggs and their breeding speed is prolific. This has allowed the species to survive for millions of years when other animals around them have gone extinct. They are found on all continents except for Antarctica and this is a testament to their success of survival.

Flies usually feed on carrion and rotting meat. They also consume foods that have gone stale. They are especially attracted to the odour of foods. It is important to keep foul smelling foods away from the house in order to best indoor fly control. Rotting foods should be carefully disposed off. The trash should also be covered so that it may not be accessible by flies.

Flies carry a number of diseases. They carry bacteria, viruses and pathogens alike. Any of these contaminants can cause serious infections and can cause fatal illnesses. As many as twenty different kinds of diseases are directly caused by flies. Flies transfer diseases by sitting on a surface such as a person’s skin and infecting it in the process. Some other species infect a person by biting the skin or laying their eggs in injured spots. This is especially common for larger species that have the ability to bite and piece through the epidermis. This enables them to contaminate the bloodstream.