Why can’t children touch the big snails crawling everywhere after the heavy rain?

Why can't children touch the big snails crawling everywhere after the heavy rain?

This kind of big snail, which appears after the rain, is actually called the African big snail, also known as the brown cloud agate snail (yes, snails and snails actually belong to the same family).
It’s the biggest snail in the world. Its hometown is in the east of Africa. Africans love to eat it up to now.
In China, Xiamen University is the place where the first African snail was found in China.
In the first half of the 20th century, an overseas Chinese brought the eggs and juveniles of the African snail into the plants transported back to China from Singapore. Since then, the snail began to breed in Xiamen and spread to other areas. It has become one of the first 16 alien invasive species in China.
This kind of “giant beast” is unambiguous in eating. All kinds of vegetables, crops, plants, and trees in the field are uniformly swept. Where they go, there is no grass. It has been listed as class II quarantine pest in China.
The most terrible thing is that the big African snail born in the wild is very dirty!
Their mucus or feces may carry many parasites and pathogens, especially Angiostrongylus cantonensis, which can cause meningoencephalitis or meningitis.
Angiostrongylus cantonensis photo: John F. Lindo / Wikimedia
Children’s immunity is low, if you are curious to touch the big African snail, it’s easier to get caught!
When Angiostrongylus cantonensis enters the human body, it will parasitize in the central nervous system or cerebrospinal fluid, which may cause fatal meningitis.
In Shenzhen, the infection rate of Angiostrongylus cantonensis was 31.0%, and the infection degree ranged from 89.2 to 154.2 per snail.
In other words, a large African snail may have more than 100 parasites.
In addition to the African snails, Pomacea canaliculata and slugs (slugs) are also the preferred intermediate hosts of Angiostrongylus cantonensis, and their final hosts are mice.
In March 2018, the domestic and foreign media reported that a 19-year-old rugby player in Sydney, Australia, had been infected with Angiostrongylus cantonensis due to eating a few slugs raw, had quadriplegia, and finally died of complications.
This is not the worst:
In 1985, nine people in a family in Taiwan were infected with the parasite after eating uncooked African snails.
In 1999, six people in a Taichung family were infected with Angiostrongylus cantonensis after eating raw organic vegetables crawled by snails, leading to meningitis.
Therefore, when we see African snails on the road, don’t touch them, don’t step on them, and don’t even pick them up to eat at home!
In addition, in order to avoid infection with Angiostrongylus cantonensis, do not eat other raw snail meat.
What about snails found at home?
Snail has a natural enemy – salt! As long as the snail touches the salt, the water in its body will be sucked up, and the snail’s body will slowly shrink and die.