Flies are one of the insects we know best and hate the most. Flies hover over the food, waiting for the opportunity to land their dirty legs and taste our food. They carry countless germs on their legs, and we are likely to cause disease after eating food that flies have crawled over.
Reproduction is rapid
Flies go through four stages of life: egg, larvae, pupae and adult. In the hot summer, the eggs of flies can become larvae in one day, pupae in 5 to 6 days, and flying flies in 3 to 5 days.
Breeding like crazy
A housefly can lay 1,000 eggs at a time and can lay eggs multiple times in a lifetime. If the temperature exceeds 30 °C, the growth cycle of flies can be shortened from 13 days to 8 days.
Dirty flies
Flies lick and pull at our dishes while eating. In an hour, they can pull stool 20 to 40 times. These stools contain a lot of bacteria that can harm the health of the human body.
A fly has 500,000-800,000 germs on one foot, 5-6 million germs on the outside of the whole fly, and up to 500 million bacteria in its mouth and intestines
vomit
If the fly eats too much, it will spit out what it has eaten into the sac. In this way, the bacteria hidden in the flies will also attach to the food along with the vomit, infecting the food.
Fly killer
In 1930, a terrible cholera disease occurred in China, and more than 100,000 people died as a result. The spreader of this disease is the hateful fly.
Tsetse fly that transmits African trypanosomiasis (aka Tsetse fly)
Narcolepsy
More than 100 years ago, more than 100,000 people on both sides of Lake Victoria in Africa suffered from narcolepsy due to the bite of tsetse flies, and then they all became hot and died of sleep.
Patients with narcolepsy can feel extremely weak and can easily die in a coma
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