Are There Parasites in Raw Beef
Homo Gets 20-Pes Tapeworm from Eating Raw Meat
A man in China who enjoyed eating raw beef became infected with a parasite — a 20-pes-long tapeworm —that came from including this food in his diet, a new instance report reveals.
The parasite had attached to the 38-year-quondam human's pocket-size intestine and had likely been within him for at least two years earlier doctors diagnosed the infection equally beef tapeworm of the species Taenia saginata, according to the instance report, published online today (January. 20) in The New England Journal of Medicine.
Tapeworm infections are quite rare in Central China, where this case took place, said Jian Li, of the department of infectious diseases at Renmin Hospital in Shiyan, Cathay, who diagnosed the man and co-authored the case report.
Although the tapeworm infection rate is quite high in the northwest and southwest districts of Prc, this was the outset case of tapeworm seen in this part of People's republic of china in 30 years, Li said.
Tapeworms are common globally, and Ethiopia, a country where people like to swallow raw meat, has one of the highest rates of infection from beef tapeworm, said Dr. Peter Hotez, dean of the National Schoolhouse of Tropical Medicine at Baylor College of Medicine in Houston, Texas, who was not involved in the case.
But beef tapeworms are rare in the United States, Hotez said.
Co-ordinate to the instance report, the man went to meet his doc in the jump of 2015 because he was having stomach pain, vomiting, had lost his appetite, felt weak and was losing weight, Li told Live Science. The symptoms had begun just 3 days earlier, but the man had already lost well-nigh v to 10 kilograms (11 to 22 lbs.), he said. [The x Most Diabolical and Icky Parasites]
When the human being came to the medico'due south function, he brought a fragment of the parasite with him that he plant in his stool, Li said. He too told his doctor that he liked to swallow raw beef.
From these two pieces of information — the parasite fragment in his stool, which was after examined under a microscope, and his consumption of raw beefiness — the doctors deduced that the man was infected with a beef tapeworm, Li said.
Over the past two years, the man's medical history also showed that he had been seen by several different doctors and given treatment for stomachaches, hurting in his abdomen and anemia, which is a low level of healthy ruby-red blood cells.
Tapeworms can live for years in a person's intestines and cause no symptoms, or only balmy ones, such as fullness or nausea later eating, Hotez told Alive Science.
But it takes a long fourth dimension for tapeworms to abound every bit long as this one did, Hotez explained, adding that other types of invertebrates, an animal grouping that includes worms, flies, snails and mosquitoes, tend to non live as long as tapeworms exercise.
No more than rare beefiness
Cattle can become infected with T. saginata when they are out to pasture and feed on the eggs of the parasite, which were passed in man feces, peculiarly in areas of poor sanitation, according to the Centers for Affliction Control and Prevention (CDC). Those tapeworm eggs tin hatch within the moo-cow, penetrate the intestinal wall and then circulate to the fauna's muscles.
People tin become infected with the parasite by eating raw or undercooked beef from a contaminated cow. The tapeworm eggs and larvae tin drift to the small intestine, attach to the abdominal wall and mature into an adult tapeworm, the CDC says.
An adult tapeworm tin produce eggs and tapeworm segments that are shed from the trunk in feces, according to the CDC.
Tapeworms from a related species, known as Taenia solium, tin can be acquired from eating raw or undercooked pork. Simply beefiness tapeworms tend to grow larger in size (up to 33 feet) and produce more eggs than pork tapeworms, co-ordinate to the CDC.
If the larvae of a pork tapeworm have migrated out of the intestines and formed cysts in other tissues, such equally the encephalon, they may cause neurological symptoms, including seizures. Pork tapeworms are a major cause of hundreds of thousands of cases of epilepsy worldwide, Hotez said. [Top vii Germs in Nutrient That Brand You Sick]
Both beef and pork tapeworm are considered "neglected tropical diseases," a category of infectious diseases that have never gotten much attention until recently, Hotez said.
In the case report, the human being's doctors explain that they treated their patient with an oral prescription medication that caused him to pass the long tapeworm out of his body 2.5 hours later.
Three months after expelling the tapeworm, the human being felt improve. His appetite and weight returned to normal.
But he probable volition never swallow raw or rare beefiness again, Li suspects. Being infected with a parasite for at least two years was a very unforgettable experience for the homo, he explained.
"Information technology was physically, emotionally and financially exhausting for him," Li said.
Follow Alive Science @livescience , Facebook & Google+ . Originally published on Live Scientific discipline .
Source: https://www.livescience.com/53442-20-foot-tapeworm-from-raw-meat.html
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