Watch out for fly vomit, it’s full of pathogens – Yahoo News

Watch out for fly vomit, it’s full of pathogens – Yahoo News

Biting flies pose a threat to human health. Scientists understood this a long time ago. And today they show how non-biting flies can be just as dangerous. Their deadly weapon: vomit!

Sensitive souls refrain! What follows may make your stomach churn. Because even though vomiting flies remain microscopic, they can be found on the food you will eat. And that, apart from the immediately disgusting aspect of the idea, really isn’t the best thing that could happen in his opinion work scientists from the University of Massachusetts, Amherst (United States of America). The risk to our health would be far greater than that – already considerable – posed by biting flies that spread disease by transporting infected blood from one to another.

Imagine a fly. Of those that revolve around your table, especially in the summer. Imagine it outside. Its main occupation is foraging. On dead animals on the side of the road, on decomposing waste or in the sewer. A fly saves everything it finds. In a crop that has very few enzymes or antimicrobials. Enough to make it a repository for all kinds of pathogens as well.

Before the flies feast on our plates, they regurgitate some of what they have eaten, who knows where else. Potentially contaminated vomit… © PaulSat, Adobe Stock

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Vomit loaded with pathogens

There would be nothing alarming about this if the fly ended up silently consuming the contents of its crop. But it doesn’t have to be like that. After feasting on dog poop, for example, a fly likes to get rid of excess water by regurgitating it. Then everything that was in contact with this water evaporates. The problem is when the regurgitation is done directly on the piece of chicken you are going to make a sandwich with. A piece on which a fly not only places its dirty feet, but also potentially deposits vomit…

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