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Brain-infecting fungus that can kill 7 in 10 patients is on the rise across America

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Quill, K. (2026, October 16). Brain-infecting fungus that can kill 7 in 10 patients is on the rise across America. Fox News. https://www.foxnews.com/health/brain-infecting-fungus-kill-7-10-patients-rise-across-america

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Fox News · collected 2026-10-16 · by Khloe Quill

Quick Summary

A rare fungal infection caused by Cladophialophora bantiana is increasing in the United States, according to a CDC report. Between 2023 and 2025, detections of the fungus nearly quadrupled at a University of Washington laboratory, with cases rising from eight in 2024 to 14 in 2025. The infection has a high fatality rate of 60% to 70%, even with treatment, and can affect healthy individuals as well as those with weakened immune systems. Cases have been reported across multiple states, prompting calls for national tracking mechanisms to monitor the spread more effectively.
Written by AI on 2026-10-16, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

A rare fungal infection caused by Cladophialophora bantiana (C. bantiana) is on the rise across the United States, with a new report from the Centers for Disease Control and Prevention highlighting its deadly impact. Between January 2009 and July 2026, researchers identified 48 confirmed cases and one probable case in tissue samples from 21 states and the District of Columbia. This mold is particularly dangerous as it can infect healthy individuals; data shows detection nearly quadrupled between 2023 and 2025 at a microbiology lab at the University of Washington. The median patient age was 68 years old, and the fungus has a mortality rate of around 7 in 10 patients, making it crucial for public health officials to call for heightened awareness and national tracking measures.

Written for “Brain-Infecting Fungus On The Rise” on 2026-11-03, grounded in this article and the 0 other(s) covering the same event.

Story

📰 Brain-Infecting Fungus On The Rise
Health · 1 article(s) covering the same event.

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Claims extracted
18
sentences that state something as happening or true
Uncertain
11%
2 of 18 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
69/100
Fox News's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Health
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-10-16 · how these are computed

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Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

Fox News · 6375 article(s) · 11 correction(s) detected
Running correction rate · 11 correction(s)

Who wrote this

Khloe Quill
27 article(s) here · 0 carrying a prediction
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Also by Khloe Quill
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Topics

CDC U.S. the Centers for Disease Control and Prevention the District of Columbia the University of Washington

Subjects

CDC ORG · 3× California GPE · 1× Florida GPE · 1× Medical Mycology ORG · 1× Texas GPE · 1× U.S. GPE · 1× University of Washington ORG · 1× the Centers for Disease Control and Prevention ORG · 1× the District of Columbia GPE · 1× the University of Washington ORG · 1×

Narrative

In one documented fatal case at the University of Washington Medical Center, spinal fluid PCR tests returned negative results both one month prior to and at the time of a brain biopsy, highlighting the difficulty of detecting the mold.
framing: assertive · carried by 1 article(s) · first seen 2026-10-16

Claims (18 extracted, 2 hedged)

A rare fungal infection that can strike healthy people is rising across the U.S., prompting calls from public health officials for heightened awareness and national tracking. asserted
that → strike → awareness
Cladophialophora bantiana (C. bantiana) is a black yeast-like mold that can infect the brain and contains a dark pigment called melanin, according to a new report from the Centers for Disease Control and Prevention. uncertain
that → infect → Control
Data from a microbiology laboratory at the University of Washington shows that detection of the fungus nearly quadrupled between 2023 and 2025. asserted
detection → show → 2023
Between January 2009 and July 2026, researchers identified 48 confirmed cases and one probable case of C. bantiana in tissue samples from 21 states and the District of Columbia. asserted
researchers → identify → Columbia
Unlike many fungal infections that mainly affect people with weakened immune systems, about half of C. bantiana infections occur in otherwise healthy people. asserted
half → affect → people
Researchers believe the mold enters the body when it is inhaled or through a skin wound, then travels through the bloodstream to the brain. asserted
it → believe → brain
The CDC report states that 88% of cases were detected in brain tissue samples and 12% were identified in lung tissue, supporting the theory that respiratory inhalation is one of the main transmission mechanisms. asserted
inhalation → state → mechanisms
The fungus causes a severe infection associated with a 60% to 70% fatality rate, even with aggressive medical intervention, according to a systematic review published in Medical Mycology. uncertain
fungus → cause → Mycology
The pathogen has historically been rare, with the University of Washington laboratory identifying only one to five cases per year between 2009 and 2023. asserted
laboratory → identify → 2009
However, the CDC says annual cases surged to eight in 2024 and reached 14 in 2025. asserted
cases → say → 2025
To make sure the increase wasn’t simply due to more testing, researchers compared the number of infections with the total number of brain tissue samples tested for fungi. asserted
researchers → make → fungi
They found that detections rose from 8.4 cases per 1,000 specimens during 2017–2023 to 26 cases per 1,000 specimens in 2025. asserted
detections → find → 2025
"Reasons for the apparent increase are unknown," the CDC report stated, calling for systematic national reporting mechanisms to better track the pathogen. asserted
report → state → pathogen
Cases were reported across a wide geographic range, with the highest counts originating in California (six), Florida (five), Texas (five) and Pennsylvania (four). asserted
counts → report → California
Because C. bantiana typically manifests as a brain abscess without clear external signs of infection, experts say early diagnosis is challenging. asserted
diagnosis → manifest → infection
In one documented fatal case at the University of Washington Medical Center, spinal fluid PCR tests returned negative results both one month prior to and at the time of a brain biopsy, highlighting the difficulty of detecting the mold. asserted
tests → document → mold
Public health experts advise clinicians to consider C. bantiana when evaluating patients who have signs of a brain abscess. asserted
who → advise → abscess
Treatment typically involves surgery to remove the infected tissue, along with multiple antifungal medications. asserted
Treatment → involve → medications
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