foodborne illnesses

The Explosive Diarrhea Outbreak Is Officially Blowing Up
If you ever wanted a good excuse for skipping out on the fresh salad for lunch, here’s one. Reports of cyclosporiasis, a foodborne parasitic disease that can cause explosive bouts of diarrhea, are skyrocketing in several parts of the country, and federal health officials are finally sounding the alarm about it after weeks of media reports. As of Wednesday, thousands of cyclosporiasis cases have been reported recently in more than 30 states. The true toll is likely higher, however, and it’s taken weeks for the Centers for the Disease Control and Prevention to formally acknowledge the possibility of a connected outbreak in multiple Midwestern states. No specific food source linked to these cases has been identified as of yet, though local health officials have singled out lettuce or salad greens as potential culprits to avoid for residents in these hot spots. A delayed alert Cyclosporiasis is caused by various species of the microscopic parasite Cyclospora, predominantly Cyclospora cayatenensis. Though rarely life-threatening, the disease is infamous for causing watery and explosively loud bouts of diarrhea, along with other common symptoms of gastrointestinal illness.

Cyclosporiasis is endemic to tropical and subtropical parts of the world, and stateside cases tend to be traced back to imported food from these areas (particularly produce) or to people who initially caught the disease while traveling in these endemic regions. The incidence of cyclosporiasis seems to be increasing worldwide, however, and 2026 is gearing up to be an especially bad year for it in the U.S.

On July 1, the CDC first stated that 145 cases from 17 states had been reported to the agency as of mid-June. Even by then, though, it was clear the CDC’s reporting was woefully out of date. By July 4, health officials in Michigan (a state not included in the initial CDC tally) had reported over 500 cases in the state, which was already triple the number reported less than a week earlier. It would take an additional two weeks, on July 14, for the CDC to formally issue a health advisory on the growing clusters. As of July 15, the CDC has received reports of 1,645 confirmed domestic cases of cyclosporiasis dating back to May 1, along with at least 141 people who were hospitalized as a result (no deaths). The agency is also aware of more than 5,100 cases that require further analysis before they can be classified as domestic cases.

People infected with Cyclospora will eventually poop out larvae forms of the parasite called oocysts. The micrograph above shows two oocysts found in a stool sample. © Melanie Moser/CDC Cases of cyclosporiasis happen every year in the U.S., with the usual seasonal peak occurring between May and August. So some of these cases are part of the pattern we would expect to see around this time of year. But it’s also become clear by now that this isn’t a typical season overall, and that some states are being hit especially hard by the explosive diarrhea bug. According to the CDC, only 249 cases were reported nationally by this same time last year. And whereas the CDC previously stated there was “no evidence of a single, multistate Cyclospora outbreak” linking cases, it is now investigating a potentially linked outbreak in four midwestern states: Michigan, Ohio, West Virginia, and Kentucky. At least 400 confirmed cases have been tied to this single cluster, though the agency is aware of more reports. Michigan alone has reported 2,640 cases as of Monday, while Ohio has reported more than 300. All of these numbers are an underestimate. People generally don’t see their doctors when they get sick from foodborne illness, and cyclosporiasis is even harder to diagnose than other similar infections, since it requires more specialized testing that is not readily available.

It’s also worth noting that the CDC chose to trim back its active surveillance of cyclosporiasis and other foodborne diseases last year, possibly due to funding cuts from the Trump administration. What to do Cyclosporiasis is spread through eating food and water contaminated with parasites shed from an infected carrier’s poop. However, infections usually don’t spread directly from person to person, since it takes several weeks for the pooped parasites to mature and become infectious.

Health officials in Michigan and other possibly linked states have not identified a specific type of produce, grower, or supplier implicated in these outbreaks, but some common threads may already be emerging. “Early information has shown lettuce as a common product that regularly comes up during the investigation,” said Natasha Bagdasarian, chief medical executive at the Michigan Department of Health and Human Services, in a statement Monday, and federal and local health officials are reportedly also looking into whether Taco Bell restaurants might be linked to the midwestern cluster. Unless you live in Michigan, Ohio, West Virginia, or Kentucky, you probably shouldn’t worry too much about the risk of catching cyclosporiasis from your next salad (at least right now).

That said, health experts always recommend washing your hands with soap and water before and after handling or preparing raw fruits and vegetables; washing all fruits and vegetables thoroughly under running water before eating, cutting, or cooking (if the produce is labeled prewashed, then you don’t need to do it again), and refrigerating cut, peeled, or cooked fruits and vegetables as soon as possible (within two hours if possible). #Explosive #Diarrhea #Outbreak #Officially #Blowingdiarrhea,foodborne illnesses,outbreaks — People infected with Cyclospora will eventually poop out larvae forms of the parasite called oocysts. The micrograph above shows two oocysts found in a stool sample. © Melanie Moser/CDC

#Explosive #Diarrhea #Outbreak #Officially #Blowingdiarrhea,foodborne illnesses,outbreaks">

July 15, 2026

Tech-news

acknowledge the possibility of a connected outbreak in multiple Midwestern states. No specific food source linked to these cases has been identified as of yet, though local health officials have singled out lettuce or salad greens as potential culprits to avoid for residents in these hot spots.

A delayed alert

Cyclosporiasis is caused by various species of the microscopic parasite Cyclospora, predominantly Cyclospora cayatenensis. Though rarely life-threatening, the disease is infamous for causing watery and explosively loud bouts of diarrhea, along with other common symptoms of gastrointestinal illness.

Cyclosporiasis is endemic to tropical and subtropical parts of the world, and stateside cases tend to be traced back to imported food from these areas (particularly produce) or to people who initially caught the disease while traveling in these endemic regions. The incidence of cyclosporiasis seems to be increasing worldwide, however, and 2026 is gearing up to be an especially bad year for it in the U.S.

On July 1, the CDC first stated that 145 cases from 17 states had been reported to the agency as of mid-June. Even by then, though, it was clear the CDC’s reporting was woefully out of date. By July 4, health officials in Michigan (a state not included in the initial CDC tally) had reported over 500 cases in the state, which was already triple the number reported less than a week earlier. It would take an additional two weeks, on July 14, for the CDC to formally issue a health advisory on the growing clusters.

As of July 15, the CDC has received reports of 1,645 confirmed domestic cases of cyclosporiasis dating back to May 1, along with at least 141 people who were hospitalized as a result (no deaths). The agency is also aware of more than 5,100 cases that require further analysis before they can be classified as domestic cases.

People infected with Cyclospora will eventually poop out larvae forms of the parasite called oocysts. The micrograph above shows two oocysts found in a stool sample. © Melanie Moser/CDC

Cases of cyclosporiasis happen every year in the U.S., with the usual seasonal peak occurring between May and August. So some of these cases are part of the pattern we would expect to see around this time of year. But it’s also become clear by now that this isn’t a typical season overall, and that some states are being hit especially hard by the explosive diarrhea bug.

According to the CDC, only 249 cases were reported nationally by this same time last year. And whereas the CDC previously stated there was “no evidence of a single, multistate Cyclospora outbreak” linking cases, it is now investigating a potentially linked outbreak in four midwestern states: Michigan, Ohio, West Virginia, and Kentucky. At least 400 confirmed cases have been tied to this single cluster, though the agency is aware of more reports. Michigan alone has reported 2,640 cases as of Monday, while Ohio has reported more than 300.

All of these numbers are an underestimate. People generally don’t see their doctors when they get sick from foodborne illness, and cyclosporiasis is even harder to diagnose than other similar infections, since it requires more specialized testing that is not readily available.

It’s also worth noting that the CDC chose to trim back its active surveillance of cyclosporiasis and other foodborne diseases last year, possibly due to funding cuts from the Trump administration.

What to do

Cyclosporiasis is spread through eating food and water contaminated with parasites shed from an infected carrier’s poop. However, infections usually don’t spread directly from person to person, since it takes several weeks for the pooped parasites to mature and become infectious.

Health officials in Michigan and other possibly linked states have not identified a specific type of produce, grower, or supplier implicated in these outbreaks, but some common threads may already be emerging.

“Early information has shown lettuce as a common product that regularly comes up during the investigation,” said Natasha Bagdasarian, chief medical executive at the Michigan Department of Health and Human Services, in a statement Monday, and federal and local health officials are reportedly also looking into whether Taco Bell restaurants might be linked to the midwestern cluster.

Unless you live in Michigan, Ohio, West Virginia, or Kentucky, you probably shouldn’t worry too much about the risk of catching cyclosporiasis from your next salad (at least right now).

That said, health experts always recommend washing your hands with soap and water before and after handling or preparing raw fruits and vegetables; washing all fruits and vegetables thoroughly under running water before eating, cutting, or cooking (if the produce is labeled prewashed, then you don’t need to do it again), and refrigerating cut, peeled, or cooked fruits and vegetables as soon as possible (within two hours if possible).

#Explosive #Diarrhea #Outbreak #Officially #Blowingdiarrhea,foodborne illnesses,outbreaks">The Explosive Diarrhea Outbreak Is Officially Blowing Up

If you ever wanted a good excuse for skipping out on the fresh salad for lunch, here’s one. Reports of cyclosporiasis, a foodborne parasitic disease that can cause explosive bouts of diarrhea, are skyrocketing in several parts of the country, and federal health officials are finally sounding the alarm about it after weeks of media reports.

As of Wednesday, thousands of cyclosporiasis cases have been reported recently in more than 30 states. The true toll is likely higher, however, and it’s taken weeks for the Centers for the Disease Control and Prevention to formally acknowledge the possibility of a connected outbreak in multiple Midwestern states. No specific food source linked to these cases has been identified as of yet, though local health officials have singled out lettuce or salad greens as potential culprits to avoid for residents in these hot spots.

A delayed alert

It’s also worth noting that the CDC chose to trim back its active surveillance of cyclosporiasis and other foodborne diseases last year, possibly due to funding cuts from the Trump administration.

What to do

Unless you live in Michigan, Ohio, West Virginia, or Kentucky, you probably shouldn’t worry too much about the risk of catching cyclosporiasis from your next salad (at least right now).

#Explosive #Diarrhea #Outbreak #Officially #Blowingdiarrhea,foodborne illnesses,outbreaks

If you ever wanted a good excuse for skipping out on the fresh salad for…

Oh Great, a Parasite That Causes Explosive Diarrhea Is Spreading Right Now
If there was one word you wouldn’t want to hear in front of the word “diarrhea,” it’d be “explosive.” Unfortunately, it’s a combination that some Americans are personally experiencing right now, thanks to ongoing outbreaks of a parasitic foodborne disease called cyclosporiasis. According to the Centers for the Disease Control and Prevention, there have been nearly 150 cases of cyclosporiasis reported across 17 states since early May, with close to two dozen people needing hospitalization as a result. The true toll of cases is almost certainly higher, though, and no clear food source behind these outbreaks has been identified as of yet. Loud and explosive Cyclosporiasis is caused by various species of the microscopic parasite Cyclospora, though it’s predominantly Cyclospora cayatenensis.

It usually takes about a week to feel sick after being infected, and the main symptom of cyclosporiasis, according to the Cleveland Clinic, is “loud, watery (explosive) diarrhea.” Joy. The infection can also cause fatigue, loss of appetite, and vomiting, though some people infected with the parasite are fortunate enough to avoid any symptoms at all. People generally feel better after a week or two without the need for treatment, though symptoms can last up to a month. While the infection is rarely fatal, people with weakened immune systems are more vulnerable to severe illness.

Cyclosporiasis is a nationally notifiable disease in 47 states, meaning doctors and testing labs are obligated to report any confirmed cases to their local or state health departments. According to the CDC, cases of cyclosporiasis in the U.S. tend to increase during the warmer months, and this year is no exception. Between May 1 and June 16, there have been 145 domestically acquired cases in 17 states reported to the CDC; of these, 20 people have been hospitalized, though no deaths have been recorded. There have also been 45 reported cases associated with travel (meaning they were likely infected outside of the U.S.). As is often true for foodborne illness, however, there are probably a lot more hidden cases out there, since many infected people might not seek medical attention over their symptoms. Diagnosis is further complicated by the fact that routine stool testing for cyclosporiasis isn’t conducted in most labs, meaning doctors have to request specialized tests, and many people might not shed enough of the parasite in their poop to be detectable at first, often requiring multiple days of testing.

According to the CDC data, the biggest outbreak is currently in New York, which has reported somewhere between 31 and 80 cases, but it’s likely not the only state that needs to be worried. “Local, state, and federal (CDC, FDA) public health authorities are investigating several clusters of cases in more than one state. Investigations to identify potential sources are ongoing,” the CDC reported in its latest update on June 18. There already seem to be larger clusters of cyclosporiasis than currently documented by the CDC. On Tuesday, for instance, Michigan health officials reported that more than 150 cases have been seen in southeastern Michigan across several counties since June 22. A representative for Monroe County specifically told Gizmodo Wednesday that 90 cases have been documented in the county so far.

What to do Cyclosporiasis is transmitted through eating food and water that’s been contaminated with infected poop, and outbreaks are often linked to produce. So far, no common sources of infection appear to have identified by the CDC or local heath departments for these latest clusters, but there are still steps you can take to lower your chances of contracting it. The CDC recommends always washing your hands with soap and water before and after handling or preparing raw fruits and vegetables; washing all fruits and vegetables thoroughly under running water before eating, cutting, or cooking (if the produce is labeled prewashed, then you don’t need to do it again), and refrigerating cut, peeled, or cooked fruits and vegetables as soon as possible (within two hours if possible). #Great #Parasite #Explosive #Diarrhea #Spreadingfoodborne illnesses,infectious diseases,outbreaks

July 1, 2026

Tech-news

reported across 17 states since early May, with close to two dozen people needing hospitalization as a result. The true toll of cases is almost certainly higher, though, and no clear food source behind these outbreaks has been identified as of yet.

Loud and explosive

Cyclosporiasis is caused by various species of the microscopic parasite Cyclospora, though it’s predominantly Cyclospora cayatenensis.

It usually takes about a week to feel sick after being infected, and the main symptom of cyclosporiasis, according to the Cleveland Clinic, is “loud, watery (explosive) diarrhea.” Joy. The infection can also cause fatigue, loss of appetite, and vomiting, though some people infected with the parasite are fortunate enough to avoid any symptoms at all. People generally feel better after a week or two without the need for treatment, though symptoms can last up to a month. While the infection is rarely fatal, people with weakened immune systems are more vulnerable to severe illness.

Cyclosporiasis is a nationally notifiable disease in 47 states, meaning doctors and testing labs are obligated to report any confirmed cases to their local or state health departments. According to the CDC, cases of cyclosporiasis in the U.S. tend to increase during the warmer months, and this year is no exception. Between May 1 and June 16, there have been 145 domestically acquired cases in 17 states reported to the CDC; of these, 20 people have been hospitalized, though no deaths have been recorded. There have also been 45 reported cases associated with travel (meaning they were likely infected outside of the U.S.).

As is often true for foodborne illness, however, there are probably a lot more hidden cases out there, since many infected people might not seek medical attention over their symptoms. Diagnosis is further complicated by the fact that routine stool testing for cyclosporiasis isn’t conducted in most labs, meaning doctors have to request specialized tests, and many people might not shed enough of the parasite in their poop to be detectable at first, often requiring multiple days of testing.

According to the CDC data, the biggest outbreak is currently in New York, which has reported somewhere between 31 and 80 cases, but it’s likely not the only state that needs to be worried.

“Local, state, and federal (CDC, FDA) public health authorities are investigating several clusters of cases in more than one state. Investigations to identify potential sources are ongoing,” the CDC reported in its latest update on June 18.

There already seem to be larger clusters of cyclosporiasis than currently documented by the CDC. On Tuesday, for instance, Michigan health officials reported that more than 150 cases have been seen in southeastern Michigan across several counties since June 22. A representative for Monroe County specifically told Gizmodo Wednesday that 90 cases have been documented in the county so far.

What to do

Cyclosporiasis is transmitted through eating food and water that’s been contaminated with infected poop, and outbreaks are often linked to produce. So far, no common sources of infection appear to have identified by the CDC or local heath departments for these latest clusters, but there are still steps you can take to lower your chances of contracting it.

The CDC recommends always washing your hands with soap and water before and after handling or preparing raw fruits and vegetables; washing all fruits and vegetables thoroughly under running water before eating, cutting, or cooking (if the produce is labeled prewashed, then you don’t need to do it again), and refrigerating cut, peeled, or cooked fruits and vegetables as soon as possible (within two hours if possible).

#Great #Parasite #Explosive #Diarrhea #Spreadingfoodborne illnesses,infectious diseases,outbreaks">Oh Great, a Parasite That Causes Explosive Diarrhea Is Spreading Right Now

If there was one word you wouldn’t want to hear in front of the word “diarrhea,” it’d be “explosive.” Unfortunately, it’s a combination that some Americans are personally experiencing right now, thanks to ongoing outbreaks of a parasitic foodborne disease called cyclosporiasis.

According to the Centers for the Disease Control and Prevention, there have been nearly 150 cases of cyclosporiasis reported across 17 states since early May, with close to two dozen people needing hospitalization as a result. The true toll of cases is almost certainly higher, though, and no clear food source behind these outbreaks has been identified as of yet.

Loud and explosive

Cyclosporiasis is caused by various species of the microscopic parasite Cyclospora, though it’s predominantly Cyclospora cayatenensis.

It usually takes about a week to feel sick after being infected, and the main symptom of cyclosporiasis, according to the Cleveland Clinic, is “loud, watery (explosive) diarrhea.” Joy. The infection can also cause fatigue, loss of appetite, and vomiting, though some people infected with the parasite are fortunate enough to avoid any symptoms at all. People generally feel better after a week or two without the need for treatment, though symptoms can last up to a month. While the infection is rarely fatal, people with weakened immune systems are more vulnerable to severe illness.

Cyclosporiasis is a nationally notifiable disease in 47 states, meaning doctors and testing labs are obligated to report any confirmed cases to their local or state health departments. According to the CDC, cases of cyclosporiasis in the U.S. tend to increase during the warmer months, and this year is no exception. Between May 1 and June 16, there have been 145 domestically acquired cases in 17 states reported to the CDC; of these, 20 people have been hospitalized, though no deaths have been recorded. There have also been 45 reported cases associated with travel (meaning they were likely infected outside of the U.S.).

As is often true for foodborne illness, however, there are probably a lot more hidden cases out there, since many infected people might not seek medical attention over their symptoms. Diagnosis is further complicated by the fact that routine stool testing for cyclosporiasis isn’t conducted in most labs, meaning doctors have to request specialized tests, and many people might not shed enough of the parasite in their poop to be detectable at first, often requiring multiple days of testing.

According to the CDC data, the biggest outbreak is currently in New York, which has reported somewhere between 31 and 80 cases, but it’s likely not the only state that needs to be worried.

“Local, state, and federal (CDC, FDA) public health authorities are investigating several clusters of cases in more than one state. Investigations to identify potential sources are ongoing,” the CDC reported in its latest update on June 18.

There already seem to be larger clusters of cyclosporiasis than currently documented by the CDC. On Tuesday, for instance, Michigan health officials reported that more than 150 cases have been seen in southeastern Michigan across several counties since June 22. A representative for Monroe County specifically told Gizmodo Wednesday that 90 cases have been documented in the county so far.

What to do

Cyclosporiasis is transmitted through eating food and water that’s been contaminated with infected poop, and outbreaks are often linked to produce. So far, no common sources of infection appear to have identified by the CDC or local heath departments for these latest clusters, but there are still steps you can take to lower your chances of contracting it.

The CDC recommends always washing your hands with soap and water before and after handling or preparing raw fruits and vegetables; washing all fruits and vegetables thoroughly under running water before eating, cutting, or cooking (if the produce is labeled prewashed, then you don’t need to do it again), and refrigerating cut, peeled, or cooked fruits and vegetables as soon as possible (within two hours if possible).

#Great #Parasite #Explosive #Diarrhea #Spreadingfoodborne illnesses,infectious diseases,outbreaks

If there was one word you wouldn’t want to hear in front of the word…

Tainted Beef Jerky Caused an Outbreak of Bear Worms
Beef jerky can be a delicious treat. But a recent report illustrates why you should be cautious about biting into a piece of homemade jerky made from wild bear meat—it just might be teeming with parasitic worms. Last week, federal and local health officials in North Carolina detailed an unusual outbreak of Trichinella roundworms in 2024 traced back to undercooked jerky from the same infected bear. At least three people were likely sickened by the cursed jerky, one of whom ended up hospitalized with severe illness. Though such cases are rare, they can be entirely prevented by cooking bear and other game meat to the recommended internal temperature, the authors say. “Low-cost safety measures and prevention efforts regarding safe wild game preparation are needed to avoid future outbreaks,” they wrote in their paper, published June 24 in the journal Emerging Infectious Diseases. A bear of a time The outbreak was first detected in November 2024 by a clinician who treated the hospitalized patient and notified health officials. The Graham County Health Department and North Carolina Division of Public Health then conducted an investigation. The patient had killed a bear at the start of the hunting season in October. The person froze half of the meat as various cuts and prepared the rest into jerky; they then shared the jerky with five other people.

By the time officials began probing, no jerky was left, but four remaining pieces of the frozen bear meat were sent off for testing at the Centers for Disease Control and Prevention; all the meat subsequently came back positive for Trichinella larvae. It’s likely the person’s jerky preparation, which only involved a marinade and drying, did not heat the meat sufficiently to kill off the worms nestled inside.

Of the six people who ate the jerky, three developed symptoms characteristic of Trichinella infection. The hospitalized patient developed severe symptoms, including muscle weakness, swelling around the eyes, and eosinophilia (a high level of eosinophils, a type of white blood cell). The hospitalized case eventually tested positive for antibodies to the infection, but the other two cases declined testing because they lacked health insurance and balked at the out-of-pocket costs for such a test (roughly 0). All three were given a standard deworming medication and made a full recovery. A growing trend? Trichinellosis used to be commonly caused by undercooked pork but is now very rare in the U.S. due to better food safety. Most cases these days are instead tied to infected game meat, including bears. According to the CDC, only about 15 cases on average are reported annually.

Still, there are some signs this disease could become more common in some places like North Carolina. In November 2023, 10 people were likely infected by eating the undercooked meat of a wild bear hunted in western North Carolina; it was the first major outbreak recorded in the state since 1991, with only three isolated cases reported during that same time period. Officials weren’t able to test the meat implicated in the 2023 outbreak and identify the specific species that caused it. This time around, testing identified a species known as Trichinella spiralis. That’s a potentially worrying discovery, the report authors note, since T. spiralis is rarely ever found in bears. So it’s possible that infection patterns might be changing among the wildlife in North Carolina and elsewhere. “Wildlife disease surveillance is needed to update our knowledge of Trichinella prevalence, host affinities, and associated public health risks,” the researchers wrote.

That said, human trichinellosis is easily preventable with some proactive measures. However it’s prepared, officials say, game meat should always be cooked to an internal temperature above 165 degrees Fahrenheit (74 degrees Celsius) to ensure all larvae are killed off. Freezing meat prior to making it into jerky might help as well, though some Trichinella species are known to be freeze-resistant. Other safe food handling practices, like keeping raw or undercooked meat away from other foods, can also prevent cross-contamination. #Tainted #Beef #Jerky #Caused #Outbreak #Bear #Wormsbears,foodborne illnesses,Parasites,Weird medicine

June 30, 2026

Tech-news

Beef jerky can be a delicious treat. But a recent report illustrates why you should be cautious about biting into a piece of homemade jerky made from wild bear meat—it just might be teeming with parasitic worms.

Last week, federal and local health officials in North Carolina detailed an unusual outbreak of Trichinella roundworms in 2024 traced back to undercooked jerky from the same infected bear. At least three people were likely sickened by the cursed jerky, one of whom ended up hospitalized with severe illness. Though such cases are rare, they can be entirely prevented by cooking bear and other game meat to the recommended internal temperature, the authors say.

“Low-cost safety measures and prevention efforts regarding safe wild game preparation are needed to avoid future outbreaks,” they wrote in their paper, published June 24 in the journal Emerging Infectious Diseases.

A bear of a time

The outbreak was first detected in November 2024 by a clinician who treated the hospitalized patient and notified health officials. The Graham County Health Department and North Carolina Division of Public Health then conducted an investigation.

The patient had killed a bear at the start of the hunting season in October. The person froze half of the meat as various cuts and prepared the rest into jerky; they then shared the jerky with five other people.

By the time officials began probing, no jerky was left, but four remaining pieces of the frozen bear meat were sent off for testing at the Centers for Disease Control and Prevention; all the meat subsequently came back positive for Trichinella larvae. It’s likely the person’s jerky preparation, which only involved a marinade and drying, did not heat the meat sufficiently to kill off the worms nestled inside.

Of the six people who ate the jerky, three developed symptoms characteristic of Trichinella infection. The hospitalized patient developed severe symptoms, including muscle weakness, swelling around the eyes, and eosinophilia (a high level of eosinophils, a type of white blood cell). The hospitalized case eventually tested positive for antibodies to the infection, but the other two cases declined testing because they lacked health insurance and balked at the out-of-pocket costs for such a test (roughly $200). All three were given a standard deworming medication and made a full recovery.

A growing trend?

Trichinellosis used to be commonly caused by undercooked pork but is now very rare in the U.S. due to better food safety. Most cases these days are instead tied to infected game meat, including bears. According to the CDC, only about 15 cases on average are reported annually.

Still, there are some signs this disease could become more common in some places like North Carolina. In November 2023, 10 people were likely infected by eating the undercooked meat of a wild bear hunted in western North Carolina; it was the first major outbreak recorded in the state since 1991, with only three isolated cases reported during that same time period.

Officials weren’t able to test the meat implicated in the 2023 outbreak and identify the specific species that caused it. This time around, testing identified a species known as Trichinella spiralis. That’s a potentially worrying discovery, the report authors note, since T. spiralis is rarely ever found in bears. So it’s possible that infection patterns might be changing among the wildlife in North Carolina and elsewhere.

“Wildlife disease surveillance is needed to update our knowledge of Trichinella prevalence, host affinities, and associated public health risks,” the researchers wrote.

That said, human trichinellosis is easily preventable with some proactive measures. However it’s prepared, officials say, game meat should always be cooked to an internal temperature above 165 degrees Fahrenheit (74 degrees Celsius) to ensure all larvae are killed off. Freezing meat prior to making it into jerky might help as well, though some Trichinella species are known to be freeze-resistant. Other safe food handling practices, like keeping raw or undercooked meat away from other foods, can also prevent cross-contamination.

#Tainted #Beef #Jerky #Caused #Outbreak #Bear #Wormsbears,foodborne illnesses,Parasites,Weird medicine">Tainted Beef Jerky Caused an Outbreak of Bear Worms

Beef jerky can be a delicious treat. But a recent report illustrates why you should be cautious about biting into a piece of homemade jerky made from wild bear meat—it just might be teeming with parasitic worms.

Last week, federal and local health officials in North Carolina detailed an unusual outbreak of Trichinella roundworms in 2024 traced back to undercooked jerky from the same infected bear. At least three people were likely sickened by the cursed jerky, one of whom ended up hospitalized with severe illness. Though such cases are rare, they can be entirely prevented by cooking bear and other game meat to the recommended internal temperature, the authors say.

“Low-cost safety measures and prevention efforts regarding safe wild game preparation are needed to avoid future outbreaks,” they wrote in their paper, published June 24 in the journal Emerging Infectious Diseases.

A bear of a time

The outbreak was first detected in November 2024 by a clinician who treated the hospitalized patient and notified health officials. The Graham County Health Department and North Carolina Division of Public Health then conducted an investigation.

The patient had killed a bear at the start of the hunting season in October. The person froze half of the meat as various cuts and prepared the rest into jerky; they then shared the jerky with five other people.

By the time officials began probing, no jerky was left, but four remaining pieces of the frozen bear meat were sent off for testing at the Centers for Disease Control and Prevention; all the meat subsequently came back positive for Trichinella larvae. It’s likely the person’s jerky preparation, which only involved a marinade and drying, did not heat the meat sufficiently to kill off the worms nestled inside.

Of the six people who ate the jerky, three developed symptoms characteristic of Trichinella infection. The hospitalized patient developed severe symptoms, including muscle weakness, swelling around the eyes, and eosinophilia (a high level of eosinophils, a type of white blood cell). The hospitalized case eventually tested positive for antibodies to the infection, but the other two cases declined testing because they lacked health insurance and balked at the out-of-pocket costs for such a test (roughly $200). All three were given a standard deworming medication and made a full recovery.

A growing trend?

Trichinellosis used to be commonly caused by undercooked pork but is now very rare in the U.S. due to better food safety. Most cases these days are instead tied to infected game meat, including bears. According to the CDC, only about 15 cases on average are reported annually.

Still, there are some signs this disease could become more common in some places like North Carolina. In November 2023, 10 people were likely infected by eating the undercooked meat of a wild bear hunted in western North Carolina; it was the first major outbreak recorded in the state since 1991, with only three isolated cases reported during that same time period.

Officials weren’t able to test the meat implicated in the 2023 outbreak and identify the specific species that caused it. This time around, testing identified a species known as Trichinella spiralis. That’s a potentially worrying discovery, the report authors note, since T. spiralis is rarely ever found in bears. So it’s possible that infection patterns might be changing among the wildlife in North Carolina and elsewhere.

“Wildlife disease surveillance is needed to update our knowledge of Trichinella prevalence, host affinities, and associated public health risks,” the researchers wrote.

That said, human trichinellosis is easily preventable with some proactive measures. However it’s prepared, officials say, game meat should always be cooked to an internal temperature above 165 degrees Fahrenheit (74 degrees Celsius) to ensure all larvae are killed off. Freezing meat prior to making it into jerky might help as well, though some Trichinella species are known to be freeze-resistant. Other safe food handling practices, like keeping raw or undercooked meat away from other foods, can also prevent cross-contamination.

#Tainted #Beef #Jerky #Caused #Outbreak #Bear #Wormsbears,foodborne illnesses,Parasites,Weird medicine

Beef jerky can be a delicious treat. But a recent report illustrates why you should…