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Forensic Files - Season 2, Episode 7 - Fatal Fungus - (In HD)

September 23, 2025 / 21:45

This episode covers the mysterious outbreak of pulmonary hemoceterosis in infants in Cleveland, featuring the cases of Brian and Briana Mitchell, and the investigation led by Dr. Ruth Zel.

In 1994, an alarming number of infants in Cleveland experienced unexplained lung bleeding, with Brian Mitchell being one of the most severe cases. His mother, Nema Williams, recounts the terrifying moments when she discovered her baby was choking on blood.

Doctors initially struggled to identify the cause, ruling out heart problems and infections. The investigation revealed that many affected infants lived within a six-mile radius of the hospital, prompting concerns about environmental factors.

Dr. Ruth Zel and her team discovered that the mold Stachybotrys atra was present in the homes of sick infants. This mold produced toxic micotoxins that could lead to severe health issues in babies.

The episode concludes with the impact of the findings on public health measures and the emotional toll on families affected by the outbreak.

TLDR

Cleveland infants suffered from a mysterious lung bleeding outbreak linked to toxic mold exposure.

Episode

21:45
00:00:05
[Music] 911. I think the baby's choked. Be right there. >> Emergency squad needed a baby that's
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choking 804 High Street. >> In 1994, an infant was rushed to a hospital emergency room with a serious breathing
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problem. The baby's lungs were bleeding, a life-threatening condition which is
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extremely rare. >> Within months, there were over 30 cases in Cleveland, just like it, a rate 1,000
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times higher than anywhere else in the world. >> Not all of the infants survived.
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>> Doctors had never seen anything like it and frantically searched for the cause.
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[Music] On a chilly November evening, Nema Williams heated some baby formula. for
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her 6-w week old son, Brian. But during that feeding, something went terribly wrong.
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>> I heard him regurgitate, so I figured it was milk. But instead, when I picked him
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up, instead of seeing white milk, you know, I'm seeing bright red blood. >> Her baby was rushed to Rainbow Babies
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and Children's Hospital in Cleveland, where doctors struggled to save little
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Brian's life. X-rays revealed that Brian's lungs were filling up with blood. Unable to breathe
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on his own, he was taken to intensive care and placed on a ventilator. >> The suctions are still pretty bloody.
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>> I'm wondering it, but I'm not thinking it. You know, my baby's going to be
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okay. We going to get through this. So, but it's still in the back of your mind.
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You know, you know, he could die. Is this the last I'm going to see you, Brian? Is this my last look at him?
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Brian was quite sick. He had bled a lot. He had dropped his hematocrit almost in
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half and required an acute blood transfusion on top of having to be supported with a ventilator.
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>> Brian Mitchell's condition was diagnosed as idiopathic pulmonary hemocerosis
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which means unexplained bleeding in the lungs. Lung bleeding is usually caused by a heart problem, an infection, or
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child abuse. But in Brian's case, doctors eliminated these as possible causes. The hospital's medical records
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revealed two other babies had been treated for unexplained lung bleeding, and one of those babies died.
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The incidence of lung bleeding in infants was 1,000 times higher in Cleveland than anywhere else in the
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world. Brian Mitchell was fortunate. After 2 weeks of improvement, he was released from the hospital. His doctors
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suspected that his lung bleeding was caused by an allergic reaction to his baby formula, and they recommended his
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mother change the type she was using. But one week later, Brian Mitchell was back in the hospital with more lung
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bleeding. >> I was just to the point, what's wrong with him? He starts bleeding. We bring
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him to the hospital. You leave him in the hospital for 3 days, but you can't
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tell us why he's here. You can't tell us what's wrong with him. Why does he keep
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bleeding? I don't know. >> Dr. Dearbornne discovered that Brian Mitchell and the other sick babies all
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lived within a sixmile radius of the hospital on Cleveland's east side. >> It was probably an environmental
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component. It said not necessarily that it was in their homes, but something in that in that part of the community was
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um was problematic. >> But there was a complication. Brian Mitchell had a twin sister, Briana, who
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lived in the same house, ate the same food, and slept in the same room as Brian,
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and even shared the same crib. If Dr. Dearborn was right, and the cause was environmental, why did little Brian get
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sick while his twin sister was perfectly healthy? And there was another problem. Only
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infants were getting sick. None of the older children or adults in the same neighborhood or even in the same homes
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were affected. Dr. Dearbornne knew he needed help and called in the Centers for Disease Control in Atlanta.
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>> The fear is we were going to continue to have more uh more of these babies and
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that we wouldn't get them too late to save them. Something mysterious was happening in
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Cleveland, causing the lungs of infants to bleed for no apparent reason. It was an outbreak unlike any other
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before in medical history. And it was happening, ironically, within a six-mile radius of a children's
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hospital. The Centers for Disease Control assigned Dr. Ruth Zel to lead the investigation
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in Cleveland. Her job was to find out what caused the death of one infant and the life-threatening illness of seven
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others. >> The job of a medical detective is an awful lot like the job of a criminal
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detective. That is, we're looking to try to track down the culprit of a specific
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unknown disease. And if we can track down that culprit, we can prevent him from attacking again.
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>> Dr. Petsel reviewed all of the medical records of the infants with pulmonary
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hemoceterosis. One thing caught her eye. Many of the infants improved in the hospital, but
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started bleeding again after they returned home. >> Use soaps and things like that to clean
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it up. >> The families of the sick infants were interviewed using a 230 item
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questionnaire to see if they differed in any way from the families of healthy children.
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All of the homes were tested to see if the pesticides used were the type approved for residential use and air
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samples from the homes were also collected. Within days of the investigation, two more babies with pulmonary
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hemocerosis were rushed to the hospital from the same neighborhood. The total number of cases was now 10.
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>> Nine of those 10 were male and all of them were African-American. So this made us start thinking as to
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whether we were dealing with something related to the genetics of race, uh whether we were dealing with uh
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something that was particularly susceptible in males. Um, so it those were in the background of of
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our considerations of still primarily something in the environment was probably causing this. But if the cause
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was environmental, why was Brian Mitchell sick while his twin sister Briana was healthy. Both slept in the
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same room, in the same crib, ate the same food, and breathed the same air. Here an infant who had no outward signs
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of bleeding had had ongoing low-grade bleeding for several weeks. And yet at any time she could have had a stress and
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she would have bled to death. So this said to us not only frightening for her but frightening for the
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community. How many infants like Briana were out in the community that were showing no real significant problems?
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How deep was this iceberg? >> As the mystery intensified, so did the fear among parents in
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Cleveland's east side neighborhoods. The level of pesticides in the sick baby's
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homes were all within normal range. And there was no difference in air samples collected from the homes of the sick
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children than those collected from the homes of the healthy infants. >> We want to prevent another death. We
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want to prevent another case. and and we didn't know where to reach out to next.
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So, uh I think all the public health authorities involved, state, federal, local, were really uh trying to get
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together in the think tank and and figure out some answers because we didn't have any.
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>> But the data gathered from the questionnaires began to reveal some important information.
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Seven of the 10 sick children lived in homes with cigarette smokers. All of the sick babies had been bottlefed. None had
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been breastfed. And all of the sick babies lived in homes that had recent water damage. Was it possible that
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smoking, baby, or something in the water was causing the deadly outbreak of the bleeding lungs in infants? Or was it
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something else? Dr. Dr. Ruth Zel spent weeks trying to figure out what was causing the
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mysterious lung bleeding among infants in Cleveland. There had been 10 cases reported so far with one death and Zel
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was afraid there would be more. >> I really can't. >> During the investigation, Dr. Zel met
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with a friend for dinner. She was a physician and a fellow medical detective from Brazil. She mentioned a lecture she
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once attended and couldn't recall all of the details but said the lecture described how micotoxins caused the
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serious illness of some Brazilian children. After dinner, Dr. Zel rushed to the library to read all she could
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about micotoxins. When she cross-referenced the words micotoxin with the word hemorrhage, the
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computer led to an article about a mold called stakibbatras atra. The article described how stakibbatras atra found in
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some grain in Europe over 40 years earlier caused livestock to bleed internally and die. Stacky botras is a
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dark green almost black slimy mold. It often grows on cellulosebased items like straw and paper after coming into
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contact with water. >> I began to wonder if micotoxins could make animals sick when they ate grain
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that was moldy. Could it be possible that micotoxins could make babies sick if they breathed them in? To test her
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theory, Zel contacted Dr. Bill Sorenson. He's a micologist who had done some
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research on the stackibbotric mold. Sorenson knew that the only possible way that stakibbot could get into a baby's
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lungs was by the spores, the tiny, almost invisible seedlike structures which are produced in the mold. Once the
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mold dries, the spores become light and powdery and can flake away, traveling great distances through the air.
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>> And so therefore, it would be possible if the spores are present in large
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enough numbers in the homes and released into the air that they could be inhaled
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and produce disease symptoms. >> There were 400 different types of spores found in the homes of the sick babies.
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The spores were placed on culture plates and left to grow for 10 days. When Sorenson analyzed the culture plates, he
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noticed that many contained a dark green, almost black mold. Under a microscope, Sorenson noticed that the
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samples from the Cleveland homes were structurally similar to the mold which killed the livestock in Europe. It was
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in fact stakibbatras atra. Investigators now knew that spores from stakibbatras atra were in the air of the sick baby's
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homes. But they needed to know whether the stakibbatra spores in Cleveland contained the same toxins as those which
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killed the livestock in Europe. To find out, scientists grew the spores found in
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the Cleveland homes in a mixture of rice. Stackibbot grows well in rice because of the moisture in the grains.
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The mold was then ground and mixed with a series of solvents to extract the chemicals contained in the spores using
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what is called high-performance liquid chromatography. The physical characteristics of the spore chemicals
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were analyzed and scientists discovered that the Cleveland spores were identical
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to the highly toxic micotoxins that killed the livestock in Eastern Europe. They were a special class of micotoxins
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called triccoenes. >> The tririccoin micotoxins are among the most potent protein synthesis inhibitors
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known. By that I mean they disrupt the ability of cells to make proteins and without that ability a cell will die.
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>> When scientists searched the homes of the sick children they found the source
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of the stackibbatra spores in mold found growing in the basement. The mold was found in all but one of the sick babies
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homes. But stackibbot was also found in half the homes tested where healthy children lived. If it was stacky that
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caused the death of one Cleveland infant and the serious illness of nine others,
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why didn't it affect all of the infants who lived in homes where it was found?
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Spores from the stackibbatric atra mold were found in all but one of the sick infants homes but were also found in
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half of the homes of healthy children living in the same neighborhood. Scientists wanted to know why some
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children developed lung bleeding while others did not. They soon discovered that the number of airborne spores in
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the sick babies's homes were far higher than in the homes of healthy children.
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In effect, the homes of sick babies contained more spores and more poison. >> Stacotus is generally not considered one
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of the major components in indoor air, major fungal components in indoor air. In fact, it's often not observed at all.
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In a study in Canada just a few years ago, they examined a few hundred houses. I don't remember the exact number, but
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they saw something like three colonies in all of these houses combined. We observed levels as high as 600 colony
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former units per cubic meter of air in some of the Cleveland homes. >> Researchers found the source of the
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stackibbotra spores in the basement growing on walls, on boxes, and even on the insulation behind the walls. For
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stackibbot to develop, two things are necessary. a cellulose product and water. Researchers discovered that some
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heavy rainstorms caused the sewer system in the geographic cluster of case homes
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to overflow which produced flooding in many of the basements. In other homes, the residents said they had some leaking
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pipes. The water was not immediately cleaned up and soaked through the drywall and the insulation inside the
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walls, creating the perfect medium for stacky botras to grow in the warm, moist, dark environment. But if the
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stackibbot was in the basement of these homes, how did the children come into contact with the spores since none of
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the sick children had been in the basement? Researchers discovered that when the mold dried, the spores flaked
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away and became airborne. The furnaces of these homes all drew air from the basement instead of the upper floors.
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The spores were sucked into the furnace, traveled through the duct work, and made
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their way into every room of the homes. Tragically, they were blown into the rooms where they could do the most
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damage, into the infant's bedrooms where the babies spent most of their time
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sleeping. Once inside the infant's lungs, the spores released the miccotoxins called triccoenes,
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which prevented the infant cells from making the protein needed to hold their tiny vessels together. With the vessels
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now weak and fragile, an external trigger may have caused the tiny vessels to rupture and bleed. Since most of the
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sick babies lived in homes with cigarette smoking, this may have been one of the triggers. And none of the
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sick babies had been breastfed, leading researchers to suspect that breast milk offered some sort of immunity.
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Older children and adults were not affected by the stackibbot spores because their lungs were better
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developed. And once researchers found how the stackibbot spores traveled from the basement to the children's rooms,
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they discovered why little Brian Mitchell was so much sicker than his twin sister Briana. Although the two
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slept in the same crib, Brian slept closer to the heating vent where he probably inhaled more spores than his
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twin sister. By the time the investigation was over, there were over 30 cases of pulmonary
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hemocrosis in Cleveland and four young infants died. Health officials urged parents to remove
00:19:00
all visible mold with bleach and water and to clean up water damage immediately to prevent the mold from developing.
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One year after this investigation, the coroner in Cleveland reopened the files of 117 babies who died from what had
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been listed as sudden infant death syndrome. lung tissue samples from their autopsies were re-examined in light of
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what doctors now knew about Stakibbatraatra. In six of those samples, the lung samples turned blue, an indication that
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the babies had bleeding in their lungs prior to their death. Officials believe that Stakiotraat may have played a role
00:19:47
in those six deaths. Yolanda Po is the mother of one of those six babies. Knowing the true cause of
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her daughter's death helps bring some closure to her family's tragedy. >> I don't think that you could get any
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worse than this outside of literally going to hell alive. There's there's
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nothing worse than this. It's not because you'll never get over. This is
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something you will never ever get over and you'll always wonder what could I
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have done? No matter how many times you hear, there was nothing you could have done.
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>> I feel remorse. I feel I feel I feel their pain because I was standing there
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at one time, you know, wondering if my son's going to die. >> Nemo Williams is thankful that her two
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children, Brian and Briana, both survived their encounter with Stakiatra Satra. When I see a little baby's face
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who is doing well, I think way beyond myself and thank the help that has come to all of us in
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trying to sort this out because we didn't do it alone. >> Something simple but so deadly. You
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know, you don't you I mean, mother nature has a bunch of stuff out there that we don't know about yet and this
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was one of them. [Music] [Music] Hey. [Music]

Badges

This episode stands out for the following:

  • 90
    Most shocking
  • 85
    Most heartbreaking
  • 85
    Biggest twist
  • 80
    Most emotional

Episode Highlights

  • Mysterious Illness in Cleveland
    An outbreak of unexplained lung bleeding in infants raises alarms among doctors and parents.
    “Something mysterious was happening in Cleveland, causing the lungs of infants to bleed for no apparent reason.”
    @ 05m 13s
    September 23, 2025
  • Discovery of Toxic Mold
    Investigators find a toxic mold linked to the lung bleeding cases in infants.
    “The Cleveland spores were identical to the highly toxic micotoxins that killed the livestock in Eastern Europe.”
    @ 13m 39s
    September 23, 2025

Episode Quotes

  • Something simple but so deadly.
    Forensic Files - Season 2, Episode 7 - Fatal Fungus - (In HD)

Key Moments

  • Emergency Call00:06
  • Choking Baby00:09
  • Rare Condition00:30
  • Environmental Investigation03:56
  • Toxic Mold Discovery10:34
  • Closure for Families20:01

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