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Summer vacation is here.
In the hot summer, many people will travel, and many parents will take their children out for summer vacation
.
When you go out, you will naturally eat some seafood, aquatic products and other delicacies
.
But, did you know that you must be especially careful about parasites when you eat and drink this season
.
In the hot summer, many people will travel, and many parents will take their children out for summer vacation
.
When you go out, you will naturally eat some seafood, aquatic products and other delicacies
.
But, did you know that you must be especially careful about parasites when you eat and drink this season
.
Recently, a video was madly forwarded on the Internet and WeChat groups.
In this video, we showed us the status of parasites in crayfish, fish, shellfish, crabs, etc.
Some "parasites" are the size of a thumb, or even themselves.
Squirming into the crayfish's body, it looks creepy
.
In this video, we showed us the status of parasites in crayfish, fish, shellfish, crabs, etc.
Some "parasites" are the size of a thumb, or even themselves.
Squirming into the crayfish's body, it looks creepy
.
In fact, parasites are far more serious than we have seen.
Both seawater and freshwater aquatic products can be infected with parasites, and even aquatic plants may be contaminated by parasites
.
According to a survey conducted by the Ministry of Health in 2005, the number of people infected with parasites in the country exceeded 100 million
.
Today we are going to talk about the parasites that need attention in summer diet
.
Both seawater and freshwater aquatic products can be infected with parasites, and even aquatic plants may be contaminated by parasites
.
According to a survey conducted by the Ministry of Health in 2005, the number of people infected with parasites in the country exceeded 100 million
.
Today we are going to talk about the parasites that need attention in summer diet
.
Liver fluke: the ghost in freshwater fish and shrimp
Friends who travel to the south coast may have eaten freshwater fish and shrimp foods such as yusheng, yusheng porridge, and side stove
.
However, there is a very common parasite in freshwater fish-Clonorchis sinensis (Clonorchis sinensis), which is also called liver fluke, is one of the parasites with the highest infection rate in China
.
Liver fluke disease has a history of at least 2,300 years in China
.
.
However, there is a very common parasite in freshwater fish-Clonorchis sinensis (Clonorchis sinensis), which is also called liver fluke, is one of the parasites with the highest infection rate in China
.
Liver fluke disease has a history of at least 2,300 years in China
.
The larvae of liver fluke are parasitic in freshwater snails and freshwater fish and shrimps.
Herring, grass carp, silver carp, fathead fish, carp and crucian that people often eat can be carried
.
After being eaten by humans, its larvae exfoliated in the duodenum and crawled into the bile duct, and then the adult worm settled in our body
.
Herring, grass carp, silver carp, fathead fish, carp and crucian that people often eat can be carried
.
After being eaten by humans, its larvae exfoliated in the duodenum and crawled into the bile duct, and then the adult worm settled in our body
.
The life history of liver flukes, humans infect liver flukes by eating parasitic freshwater fish.
Liver flukes will shed their capsules in the human intestines, and adult worms will eventually settle in the bile ducts
.
Picture: "Human Parasitology" / People's Medical Publishing House
Liver flukes will shed their capsules in the human intestines, and adult worms will eventually settle in the bile ducts
.
Picture: "Human Parasitology" / People's Medical Publishing House
Once the liver fluke enters the human body, it can survive for a long time, and some can even survive for up to 20 to 30 years
.
Its greatest harm to the human body is that it can damage the liver and cause a series of hepatobiliary diseases such as cholecystitis, liver cirrhosis, and cholangiocarcinoma.
It is listed as a Class I carcinogen by the International Agency for Research on Cancer (IARC)
.
.
Its greatest harm to the human body is that it can damage the liver and cause a series of hepatobiliary diseases such as cholecystitis, liver cirrhosis, and cholangiocarcinoma.
It is listed as a Class I carcinogen by the International Agency for Research on Cancer (IARC)
.
The most troublesome thing is that the liver fluke is like a ghost, even if it is infected, it is difficult to find
.
The early symptoms of liver fluke infection are not obvious, unless it is an acute attack, it often takes several years before symptoms appear
.
Moreover, the symptoms caused by liver flukeworm disease are very common, such as fatigue, stomach pain, loss of appetite, indigestion, abdominal pain, diarrhea, etc.
, so many people do not know that it is because of it, and they are often misdiagnosed and delayed
.
.
The early symptoms of liver fluke infection are not obvious, unless it is an acute attack, it often takes several years before symptoms appear
.
Moreover, the symptoms caused by liver flukeworm disease are very common, such as fatigue, stomach pain, loss of appetite, indigestion, abdominal pain, diarrhea, etc.
, so many people do not know that it is because of it, and they are often misdiagnosed and delayed
.
In the pursuit of freshness and tenderness, people may pick up freshwater sashimi before it is cooked thoroughly, which increases the chance of infection with liver flukes
.
Picture: PxHere
.
Picture: PxHere
Raw freshwater aquatic products are the most important factor causing liver fluke infection
.
In areas where there is a habit of eating freshwater fish raw (such as Guangdong), the infection rate of liver flukes is quite high
.
In recent years, the infection rate of parasites such as roundworms, hookworms, and whipworms has shown a downward trend, but the infection rate of liver flukes has shown an upward trend in some regions (such as Guangdong).
A large part of the reason is that people in these regions like to eat raw.
Freshwater aquatic products
.
.
In areas where there is a habit of eating freshwater fish raw (such as Guangdong), the infection rate of liver flukes is quite high
.
In recent years, the infection rate of parasites such as roundworms, hookworms, and whipworms has shown a downward trend, but the infection rate of liver flukes has shown an upward trend in some regions (such as Guangdong).
A large part of the reason is that people in these regions like to eat raw.
Freshwater aquatic products
.
At present, nearly 70 kinds of freshwater aquatic products are known to be infected with liver fluke.
For example, a survey found that the infection rate of grass carp reached 75%, the infection rate of panhead fish in Nanhai District of Foshan City was 87%, and the infection rate of wheat ear fish in Sanshui District was 100%.
.
Therefore, I remind everyone not to eat freshwater fish and shrimp raw
.
In addition, when making freshwater fish and shrimps at home, you must also separate the cutting boards, knives, and containers from raw and cooked to prevent cross-contamination
.
For example, a survey found that the infection rate of grass carp reached 75%, the infection rate of panhead fish in Nanhai District of Foshan City was 87%, and the infection rate of wheat ear fish in Sanshui District was 100%.
.
Therefore, I remind everyone not to eat freshwater fish and shrimp raw
.
In addition, when making freshwater fish and shrimps at home, you must also separate the cutting boards, knives, and containers from raw and cooked to prevent cross-contamination
.
Fresh freshwater prawns are directly seasoned and marinated with wine to make drunken prawns.
Because there is no heating step, alcohol alone cannot completely kill liver flukes
.
If you like the taste of drunk shrimp, it is recommended to cook the shrimp thoroughly before marinating with wine
.
Image: James Creegan / wikimedia
Because there is no heating step, alcohol alone cannot completely kill liver flukes
.
If you like the taste of drunk shrimp, it is recommended to cook the shrimp thoroughly before marinating with wine
.
Image: James Creegan / wikimedia
Bullfrogs are delicious, beware of sparganosis
Bullfrog is also a delicacy that many people like to try
.
However, bullfrogs may also carry parasites-sparganosis
.
.
However, bullfrogs may also carry parasites-sparganosis
.
Plerocercoid (plerocercoid) is not the name of a parasite.
It is a general term for the larvae of certain types of tapeworms in a developmental stage called the "medium tape stage".
The most common one is Plerocera mansoni
.
It is a general term for the larvae of certain types of tapeworms in a developmental stage called the "medium tape stage".
The most common one is Plerocera mansoni
.
If the bullfrog that is eaten is not cooked, it may be infected with sparganosis
.
Picture: PxHere
.
Picture: PxHere
The adult worm of S.
mansoni is called Spirometra mansoni (Spirometra mansoni), which is relative to the well-known pork tapeworm
.
The ultimate hosts of Diegonella mansoni are mainly cats and dogs, and sometimes carnivores such as tigers and leopards
.
In the intestines of these animals, adult tapeworms can parasitize for several years and produce a large number of eggs
.
These eggs enter the water with the feces, hatch into larvae, and then enter the tadpoles along the food chain
.
As tadpoles develop into frogs, larvae also develop into sparganosis
.
If people eat infected tadpoles or frogs, the larvae will enter our body
.
mansoni is called Spirometra mansoni (Spirometra mansoni), which is relative to the well-known pork tapeworm
.
The ultimate hosts of Diegonella mansoni are mainly cats and dogs, and sometimes carnivores such as tigers and leopards
.
In the intestines of these animals, adult tapeworms can parasitize for several years and produce a large number of eggs
.
These eggs enter the water with the feces, hatch into larvae, and then enter the tadpoles along the food chain
.
As tadpoles develop into frogs, larvae also develop into sparganosis
.
If people eat infected tadpoles or frogs, the larvae will enter our body
.
Life history of tapeworm mansoni
.
Picture: "Human Parasitology" / People's Medical Publishing House
.
Picture: "Human Parasitology" / People's Medical Publishing House
Pork tapeworm taken out of the human body
.
Picture: wikimedia
.
Picture: wikimedia
Although humans are not the ultimate host of tapeworms, they can also cause great harm to the human body, especially sparganosis, which can travel between different parts of the human body, and the damage may be all over the body
.
Diseases caused by sparganosis are collectively referred to as sparganosis.
According to the location of the disease, it can be roughly divided into five categories: eyes, subcutaneous, oral and facial, brain and internal organs
.
.
Diseases caused by sparganosis are collectively referred to as sparganosis.
According to the location of the disease, it can be roughly divided into five categories: eyes, subcutaneous, oral and facial, brain and internal organs
.
In China, the incidence of ocular sparganosis is the highest, and the symptoms are quite scary.
Patients will have lumps in the eyes and various serious discomforts
.
If sparganosis invades the eyeball, it may even cause blindness
.
Sparganosis can also damage the human brain and can cause paralysis in the worst cases
.
Patients will have lumps in the eyes and various serious discomforts
.
If sparganosis invades the eyeball, it may even cause blindness
.
Sparganosis can also damage the human brain and can cause paralysis in the worst cases
.
Incorrect consumption of frogs and snakes, such as direct consumption of untreated frogs or snake tissue-drinking snake blood, swallowing snake gall, eating cold snake skin, or drinking water contaminated by worm-carrying water fleas by mistake , May cause sparganosis infection
.
In addition, some people have a "fancy" diet hobby of swallowing tadpoles raw, which can easily cause infection
.
.
In addition, some people have a "fancy" diet hobby of swallowing tadpoles raw, which can easily cause infection
.
There are folk prescriptions that believe that raw tadpoles can cure certain diseases.
This is unfounded and there is a risk of infection with parasites
.
Image: westdene / px
This is unfounded and there is a risk of infection with parasites
.
Image: westdene / px
In addition to eating, compresses also increase the risk of sparganosis infection
.
In China, more than half of people infected with sparganosis are caused by the application of raw frog meat
.
Because frog meat is popular among folks for its "cooling and detoxifying" effect, many people use raw frog meat to apply it to wounds or skin abscesses, which increases the risk of infection
.
.
In China, more than half of people infected with sparganosis are caused by the application of raw frog meat
.
Because frog meat is popular among folks for its "cooling and detoxifying" effect, many people use raw frog meat to apply it to wounds or skin abscesses, which increases the risk of infection
.
Eat snails, beware of "Li Gui"
Tian snails are also a famous snack for supper and skewers in summer
.
However, many people often suffer from parasitic infections caused by accidental eating of snails
.
Here is a special reminder to everyone, do not eat Fushou snails as snails
.
.
However, many people often suffer from parasitic infections caused by accidental eating of snails
.
Here is a special reminder to everyone, do not eat Fushou snails as snails
.
Pomacea canaliculata (Pomacea canaliculata) is very popular in the Yangtze River
.
The taste of Fushou snails is actually not good, it is not delicious at all, so few people will eat it exclusively
.
However, because it has no natural enemies and has a high yield, some illegal merchants sell it as a snail "civet cat for prince".
As a result, people are infected with a parasite-Angiostrongylus cantonensis
.
.
The taste of Fushou snails is actually not good, it is not delicious at all, so few people will eat it exclusively
.
However, because it has no natural enemies and has a high yield, some illegal merchants sell it as a snail "civet cat for prince".
As a result, people are infected with a parasite-Angiostrongylus cantonensis
.
Swipe left and right to see the difference between Fushou snail and the two common snails, the Chinese snail and the Chinese snail
.
Picture: Claude & Amandine EVANNO
.
Picture: Claude & Amandine EVANNO
Angiostrongylus cantonensis (Angiostrongylus cantonensis), also known as mouse lung nematode
.
This parasite was first discovered by Chinese scholar Chen Xintao in rodents in Guangzhou in 1933
.
.
This parasite was first discovered by Chinese scholar Chen Xintao in rodents in Guangzhou in 1933
.
Angiostrongylus cantonensis
.
Image: Punlop Anusonpornperm / wikimedia
.
Image: Punlop Anusonpornperm / wikimedia
Adults of this parasite live in the heart and lung tissues of rodents, and the intermediate hosts are molluscs such as Fortune Snails and Agate Snails
.
These mollusks are infected by ingesting feces containing larvae
.
Humans can be infected by eating uncooked or raw molluscs, frogs, toads, freshwater fish, shrimps, crabs, etc.
containing Angiostrongylus larvae, and can also be infected by Angiostrongylus cantonensis through contact Stage larvae contaminate food or water
.
The first human case of Angiostrongyliasis in humans was discovered in Taiwan Province in 1994
.
.
These mollusks are infected by ingesting feces containing larvae
.
Humans can be infected by eating uncooked or raw molluscs, frogs, toads, freshwater fish, shrimps, crabs, etc.
containing Angiostrongylus larvae, and can also be infected by Angiostrongylus cantonensis through contact Stage larvae contaminate food or water
.
The first human case of Angiostrongyliasis in humans was discovered in Taiwan Province in 1994
.
The snail is an intermediate host of Angiostrongylus cantonensis, and the nematode can parasitize in the snail
.
If the heating is not thorough or cooked during cooking, nematodes will easily invade the human body and cause illness
.
.
If the heating is not thorough or cooked during cooking, nematodes will easily invade the human body and cause illness
.
Although the risks can be avoided by being well cooked, can ordinary people be guaranteed to be well cooked when cooking? Image: Luke Nguyen
Infection with Angiostrongylus cantonensis can be a very painful process
.
Its most prominent manifestation is severe headache, which may have symptoms such as nerve root pain, hyperalgesia, and symptoms such as fever, nausea, and vomiting.
It can even cause meningitis, and can even lead to death if it is not treated in time
.
Remind everyone to be careful when going out to eat snails and avoid eating Fushou snails
.
.
Its most prominent manifestation is severe headache, which may have symptoms such as nerve root pain, hyperalgesia, and symptoms such as fever, nausea, and vomiting.
It can even cause meningitis, and can even lead to death if it is not treated in time
.
Remind everyone to be careful when going out to eat snails and avoid eating Fushou snails
.
Eat water chestnuts raw, beware of ginger bugs
Many people take advantage of the summer to pick lotus, water chestnut, and water chestnuts in the lake to eat.
However, if you think that the host of parasites is limited to animals, you are wrong.
Eating raw aquatic plants may also be infected with parasites
.
However, if you think that the host of parasites is limited to animals, you are wrong.
Eating raw aquatic plants may also be infected with parasites
.
There is a parasite that is mainly transmitted by the stems and fruits of aquatic plants, such as water chestnuts, water chestnuts, lotus roots, water chestnuts and water red water chestnuts.
This parasite is called Fasciolopsis buski (Fasciolopsis buski), or ginger for short.
Worms
.
This parasite is called Fasciolopsis buski (Fasciolopsis buski), or ginger for short.
Worms
.
Ginger fluke brucei
.
Image: CDC / wikimedia
.
Image: CDC / wikimedia
This is a large fluke parasitic in the human small intestine, which can cause ginger worm disease
.
The larvae of ginger fluke brucei will get into the flesh of those aquatic plants.
When people eat these sweet, crunchy and juicy edible parts raw, or use their teeth to chew off the skin of these plants, they will eat the larvae of ginger fluke.
Enter the intestines and cause disease
.
Ginger worms that enter the human body can cause intestinal mucosal necrosis, shedding, inflammation, edema, ulcers or abscesses, which can cause symptoms such as abdominal pain and diarrhea in the infected person.
In severe cases, it can cause malnutrition or even death
.
.
The larvae of ginger fluke brucei will get into the flesh of those aquatic plants.
When people eat these sweet, crunchy and juicy edible parts raw, or use their teeth to chew off the skin of these plants, they will eat the larvae of ginger fluke.
Enter the intestines and cause disease
.
Ginger worms that enter the human body can cause intestinal mucosal necrosis, shedding, inflammation, edema, ulcers or abscesses, which can cause symptoms such as abdominal pain and diarrhea in the infected person.
In severe cases, it can cause malnutrition or even death
.
Life history of Fasciola brucei
.
Picture: "Human Parasitology" / People's Medical Publishing House
.
Picture: "Human Parasitology" / People's Medical Publishing House
Human gingerworm disease is generally more common in adolescents, but the infection rate is high in all age groups in severely endemic areas, which mainly depends on the chance of infection with gingerworm metacercaria
.
The survey found that eating water chestnuts (especially red water chestnuts), water chestnuts, water chestnuts and other aquatic plants, especially when harvesting water chestnuts while eating them, are all susceptible to ginger worms
.
.
The survey found that eating water chestnuts (especially red water chestnuts), water chestnuts, water chestnuts and other aquatic plants, especially when harvesting water chestnuts while eating them, are all susceptible to ginger worms
.
Remember to cook water chestnut before eating
.
Image: TheDarkCurrent / wikimedia
.
Image: TheDarkCurrent / wikimedia
Remind everyone that even water chestnuts bought at the town market may have live metacercaria.
There have been cases of ginger worm metacercaria found on a water chestnut before
.
Therefore, it is recommended that you try not to eat water chestnuts, water chestnuts, lotus roots and other aquatic plants raw.
When children go to pick these aquatic plants, do not eat them while picking them
.
There have been cases of ginger worm metacercaria found on a water chestnut before
.
Therefore, it is recommended that you try not to eat water chestnuts, water chestnuts, lotus roots and other aquatic plants raw.
When children go to pick these aquatic plants, do not eat them while picking them
.
Is it okay to eat raw seafood? Don't ignore Anisakis
Speaking of so many parasites in freshwater food, many people will think, is there no parasites in seafood? In recent years, raw salmon fillets and oysters have become very popular
.
.
Many people like to eat salmon sashimi, but there is still a risk of parasite infection
.
Image: Pixabay
.
Image: Pixabay
Indeed, there have been sayings that “parasites cannot live in sea water”, “no parasites exist in marine fish”, “you don’t have to worry about parasites if you eat sea fish raw”, etc.
However, this is not the case
.
In fact, sea water is not a restricted area for parasites, and eating seafood may also be infected with parasites
.
However, this is not the case
.
In fact, sea water is not a restricted area for parasites, and eating seafood may also be infected with parasites
.
The types of "parasites" are very diverse, and the living environment and host are even different
.
Although it is true that some parasites cannot live in the seawater environment, there are not a few parasites that parasitize the surface or body of marine fish
.
Like other animals, almost every marine fish will be infected by parasites
.
.
Although it is true that some parasites cannot live in the seawater environment, there are not a few parasites that parasitize the surface or body of marine fish
.
Like other animals, almost every marine fish will be infected by parasites
.
At present, there are many kinds of marine fish parasites, and the fish diseases caused by these parasites, such as irritant cryptosporidiosis, myxosporidiosis, sea worm disease, etc.
, are often faced in marine fish farming.
Problem, and the most notorious parasite in seafood is Anisakis
.
, are often faced in marine fish farming.
Problem, and the most notorious parasite in seafood is Anisakis
.
Anisakis found in salmon meat
.
Image: Togabi/wikimedia
.
Image: Togabi/wikimedia
Anisakis (also known as sea animal gastric nematode) is a nematode parasite.
It is a parasite that distributes globally, and their "worm traces" can be found in all ocean areas of the world
.
There are many types of marine fish infected by Anisakis.
Among them, food fish are salmon, salmon, tuna, sea bass, cod, hairtail, moray, grouper, herring, red sea bream and so on
.
In addition, squid, which is not a fish, is also one of the hosts of Anisakis
.
It is a parasite that distributes globally, and their "worm traces" can be found in all ocean areas of the world
.
There are many types of marine fish infected by Anisakis.
Among them, food fish are salmon, salmon, tuna, sea bass, cod, hairtail, moray, grouper, herring, red sea bream and so on
.
In addition, squid, which is not a fish, is also one of the hosts of Anisakis
.
If anisakis enters the human body, it will cause health damage to the human body
.
For example, acute anisakis disease
.
Acute anisakis disease is caused by a large number of live insects entering the body
.
These live insects penetrate into human tissues, causing tissue swelling, bleeding and even inflammation, which in turn causes patients to experience symptoms such as nausea, abdominal pain, and vomiting
.
In addition, this parasite can also cause allergic anisakiosis
.
So, don’t think that there is no risk of parasites if you eat seafood
.
.
For example, acute anisakis disease
.
Acute anisakis disease is caused by a large number of live insects entering the body
.
These live insects penetrate into human tissues, causing tissue swelling, bleeding and even inflammation, which in turn causes patients to experience symptoms such as nausea, abdominal pain, and vomiting
.
In addition, this parasite can also cause allergic anisakiosis
.
So, don’t think that there is no risk of parasites if you eat seafood
.
How to prevent parasitic infections?
Do not eat fresh water aquatic products raw
.
The risk of parasites in freshwater aquatic products is much greater.
Never eat freshwater aquatic products raw
.
.
The risk of parasites in freshwater aquatic products is much greater.
Never eat freshwater aquatic products raw
.
When eating out, especially aquatic seafood and meat, try to eat in regular restaurants
.
.
If you do it yourself, you should fully freeze the seafood you buy back home
.
Parasites are afraid of low temperatures
.
If you want to make your own sashimi at home, you may wish to freeze the sashimi in the freezer for a week or so before eating
.
.
Parasites are afraid of low temperatures
.
If you want to make your own sashimi at home, you may wish to freeze the sashimi in the freezer for a week or so before eating
.
Eat it when it's done
.
Heating is the most effective way to kill parasites
.
When eating seafood and aquatic products outside, many people choose to eat them raw for the sake of deliciousness.
However, the risk of infecting parasites is actually very high.
It is best to heat them thoroughly before eating them
.
.
Heating is the most effective way to kill parasites
.
When eating seafood and aquatic products outside, many people choose to eat them raw for the sake of deliciousness.
However, the risk of infecting parasites is actually very high.
It is best to heat them thoroughly before eating them
.
I especially remind everyone that soy sauce, wasabi sauce, and white wine are not enough to kill these parasites.
Don't be superstitious about their effects
.
Don't be superstitious about their effects
.
Pay attention to standard operation, separate raw and cooked
.
When making aquatic seafood at home, you must pay attention to standard operation, separate raw and cooked to prevent cross-contamination
.
.
When making aquatic seafood at home, you must pay attention to standard operation, separate raw and cooked to prevent cross-contamination
.
Prevent "Lee Ghost"
.
Individual businesses will use chilled freshwater to raise rainbow trout as salmon, and use Fushou snails as escargots for sale.
The risk of parasite infection will be much higher
.
It is recommended to go to reliable shopping malls, supermarkets, restaurants
.
.
Individual businesses will use chilled freshwater to raise rainbow trout as salmon, and use Fushou snails as escargots for sale.
The risk of parasite infection will be much higher
.
It is recommended to go to reliable shopping malls, supermarkets, restaurants
.
