Evidence map›Paper›PMID 29401275›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2018

Primary Amebic Meningoencephalitis Associated With Rafting on an Artificial Whitewater River: Case Report and Environmental Investigation.

Jennifer R Cope, Jennifer Murphy, Amy Kahler, Daniel G Gorbett, Ibne Ali, Brandi Taylor, Lisa Corbitt, Shantanu Roy, Nicole Lee, Dawn Roellig and 2 more

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Systematic Review of Brain-Eating Amoeba: A Decade Update.International journal of environmental research and public health · 2023
    Pooled it
  2. Review
  3. Global Review onInfectious disease reports · 2026
    Review
  4. Virulence ofbioRxiv : the preprint server for biology · 2025
    Article
  5. Article
  6. Journal of clinical medicine · 2025
    Review
  7. Review
  8. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 1 country.

Jennifer R CopeWaterborne Disease Prevention Branch, Centers for Disease Control and Prevention, Atlanta, Georgia.
Jennifer MurphyWaterborne Disease Prevention Branch, Centers for Disease Control and Prevention, Atlanta, Georgia.
Amy KahlerWaterborne Disease Prevention Branch, Centers for Disease Control and Prevention, Atlanta, Georgia.
Daniel G GorbettMount Carmel Hospital, Columbus, Ohio.
Ibne AliWaterborne Disease Prevention Branch, Centers for Disease Control and Prevention, Atlanta, Georgia.
Brandi TaylorOhio Department of Health, Columbus.
Lisa CorbittMecklenburg County Health Department, Charlotte, North Carolina.
Shantanu RoyWaterborne Disease Prevention Branch, Centers for Disease Control and Prevention, Atlanta, Georgia.
Nicole LeeNorth Carolina Department of Health and Human Services, Raleigh.
Dawn RoelligWaterborne Disease Prevention Branch, Centers for Disease Control and Prevention, Atlanta, Georgia.
Scott BrewerFranklin County Public Health, Columbus, Ohio.
Vincent R HillWaterborne Disease Prevention Branch, Centers for Disease Control and Prevention, Atlanta, Georgia.
Centers for Disease Control and Prevention · USMecklenburg County Government · USMount Carmel East · USNC Department of Health and Human Services · USOhio Department of Health · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

Background: Naegleria fowleri is a thermophilic ameba found in freshwater that causes primary amebic meningoencephalitis (PAM) when it enters the nose and migrates to the brain. Patient exposure to water containing the ameba typically occurs in warm freshwater lakes and ponds during recreational water activities. In June 2016, an 18-year-old woman died of PAM after traveling to North Carolina, where she participated in rafting on an artificial whitewater river. Methods: We conducted an epidemiologic and environmental investigation to determine the water exposure that led to the death of this patient. Results: The case patient's most probable water exposure occurred while rafting on an artificial whitewater river during which she was thrown out of the raft and submerged underwater. The approximately 11.5 million gallons of water in the whitewater facility were partially filtered, subjected to ultraviolet light treatment, and occasionally chlorinated. Heavy algal growth was noted. Eleven water-related samples were collected from the facility; all were positive for N. fowleri. Of 5 samples collected from the nearby natural river, 1 sediment sample was positive for N. fowleri. Conclusions: This investigation documents a novel exposure to an artificial whitewater river as the likely exposure causing PAM in this case. Conditions in the whitewater facility (warm, turbid water with little chlorine and heavy algal growth) rendered the water treatment ineffective and provided an ideal environment for N. fowleri to thrive. The combination of natural and engineered elements at the whitewater facility created a challenging environment to control the growth of N. fowleri.

Indexed as

AcanthamoebaAdolescentAmoebaBalamuthia mandrillarisBrainCentral Nervous System Protozoal InfectionsEnvironmentFatal OutcomeFemaleHumansMeningoencephalitisNaegleria fowleriNorth CarolinaParks, RecreationalPolymerase Chain ReactionRiversenvironmentalNaegleria fowleriprimary amebic meningoencephalitis

Identifiers

PMID29401275
PMCPMC5801760
OpenAlexW2755897713

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.