Family members infected with brain worms after eating undercooked bear meat

May 24, 2024
2 mins read
Family members infected with brain worms after eating undercooked bear meat


Several family members who shared a meal of bear meat that one of the family members had previously harvested were later infected with brain worms, according to a new report from the Centers for Disease Control and Prevention.

In July 2022, the Minnesota Department of Health was informed that a 29-year-old man had been hospitalized multiple times over a two-and-a-half-week period with symptoms including fever, severe muscle pain, swelling around the eyes, and other various diseases.

After his second hospitalization, the man told doctors that days earlier he had attended a family reunion in South Dakota, and that one of the meals they shared included kabobs made from black bear meat that “had been harvested by one of the members of the family in the north of the country”. Saskatchewan.”

The meat sat in the freezer for a month and a half before being thawed for the meal. The CDC reported that because the meat was darker in color, it was initially and inadvertently served undercooked. Family members began to eat the kebabs, but noticed that the meat was undercooked, so it was cooked again and served again.

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The CDC presented microscopic evidence of “larvae encapsulated in a direct preparation of black bear meat and pumpkin” in its release.

Centers for Disease Control and Prevention


Nine family members, mostly from Minnesota but also hailing from South Dakota and Arizona, ate the meal, although some of them ate only the vegetables, which were cooked and served alongside the bear meat.

Doctors eventually diagnosed the 29-year-old with trichinellosis, a roundworm that is rare in humans and usually acquired through the consumption of wild game. Once in the human host, the larvae can then move through the body to muscle tissues and organs, including the brain.

Five other family members were diagnosed with these freeze-resistant worms, including a 12-year-old girl and two other family members who only ate vegetables for their meal. In total, three family members were hospitalized and treated with albendazole what the Mayo Clinic says it prevents the worms from absorbing sugar “so that the worm loses energy and dies.”

The CDC reported that the only safe way to kill trichinella parasites is to properly cook the meat in which it resides, to an internal temperature of at least 165 degrees F, and reiterated the warning that it can contaminate other foods.

The CDC said estimates of the prevalence of trichinella parasites among wild animals vary widely, but it is believed that up to a quarter of black bears in Canada and Alaska may be infected.

Brain worms made national news earlier this year after presidential candidate Robert F. Kennedy Jr. revealed that a parasitic worm he contracted years ago “ate a portion” of his braincausing possible cognitive problems.

Symptoms of brain worm infection may include nausea, vomiting, headaches and seizures, Dr. Céline Gounder said “CBS Mornings.” However, some people who contract the worms may also not experience any symptoms. Gounder added that these parasites are usually “isolated by the immune system and calcified.”



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