On the fly’s feet over 300 bacteria, and in the city are more dirty

Many cause illness for man, leaving behind a microbial colony
Flies can carry and spread hundreds of different bacteria, many of which are dangerous to humans. He discovered a study published by the journal Scientific Reports, which warns above all of those living in the city.

Researchers at Penn State University have analyzed microorganisms in 116 specimens of domestic species of Musca, present in virtually all the latitudes, and of Chrysomya megacephala, more characteristic of hot climates coming from three continents. In the first, 351 species of bacteria were found, while in the second 310, with many common insects and different dangerous for humans, such as Helicobacter Pilori. In the city flies, the authors have pointed out, more microorganisms have been found than those in the countryside. “Legs and wings show the greatest amount of microbes,” he writes, “and this suggests that bacteria use insects as” air conveyors. “The study shows that each step of the flies leaves behind a microbial colony if the surface it supports growth. ”

Transmission is so efficient, the study explains, that flies could be used as ‘spies’ to check for pathogens in given territories. “The study makes you think twice before eating that potato salad you brought to the picnic – explains Donald Bryant, the lead author -, and that it would be better to do it in the countryside, away from the city, rather than in a park”.

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