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Medical Daily
Medical Daily
Dorothy Brooks

Durham Clinic's Garden Water Feature Named Most Likely, Not Confirmed, Source of Amoeba That Killed North Carolina Teen

North Carolina health investigators have named an interactive garden water feature at El Futuro, a community-based mental health center in Durham County, as the most likely source of the Naegleria fowleri infection that killed a central North Carolina teenager last month. The state's investigation report, dated Sept. 15, says the finding is not conclusive.

The conclusion shifts attention from lakes and ponds to man-made water that children play in. Family members told investigators the teen had contact with the garden feature on Aug. 13, including splashing water on the face, during the likely exposure period.

For parents, the practical question is no longer only whether a child swam in warm freshwater. It is also whether decorative creeks, fountains, and splash features at clinics, businesses, and homes are properly disinfected.

The feature was built to invite play. The report describes a recirculating man-made creek with a pump, multiple fountains, a play water pump, and a fire hydrant fountain.


Since the Earlier Report, a Death and a Narrowed Search

MedicalDaily previously reported that the teenager was critically ill and that the source of the infection was under investigation. The teen died Aug. 31, according to the state report and WBTV.

Investigators have since sampled four possible exposure sites. On Aug. 28, the Durham County Health Department advised the center to close the water feature, which was drained and remains closed to the public.


Evidence Behind the Most Likely Finding

The teen went to an emergency room on Aug. 21 after two days of severe headache and was admitted the next day with worsening symptoms, according to the report. Spinal fluid showed amoebas consistent with Naegleria, and a CDC laboratory confirmed Naegleria fowleri through PCR testing on Aug. 26.

CDC specialists and local officials sampled an Orange County apartment complex pool where the teen swam on Aug. 11 and Aug. 17, two Alamance County ponds the teen had planned to visit, and the El Futuro garden feature. The only sample with Naegleria fowleri genetic material came from the garden feature's storage tank, and that material was non-viable. No live Naegleria fowleri was found at any site.

Conditions at the water feature supported the conclusion. The center told investigators the feature was cleaned by power washing and hand-fed chlorination. Inspectors found algae throughout the man-made creek, debris covering the pump filter, and water measured at 33 degrees Celsius, or about 91 degrees Fahrenheit, according to the report and WBTV coverage published by FOX Carolina.

The apartment pool had problems, too, including chlorine below the required minimum and a leak from its recirculation system, but no Naegleria was detected there. Investigators judged the pool and ponds unlikely sources and recommended that the pool be drained, cleaned, and repaired before reopening.

The report is careful about its limits. It states that "this investigation does not allow us to conclusively determine the location of exposure." Investigators also noted that patients are often too ill to describe their water exposures, a problem that is especially challenging for older children and adults, whose activities are less closely monitored than those of young children.


Splash Features, Fountains, and the Household Risk

Naegleria fowleri infection is extremely rare, with fewer than 10 U.S. cases a year, according to the report. Infection happens only when contaminated water goes up the nose. Swallowing the water does not cause infection, and the illness does not spread from person to person.

The report points to earlier cases linked to improperly maintained splash pads and to nasal rinsing with untreated water, and it notes that no cases have been documented from swimming in well-maintained pools. The CDC advises keeping untreated water out of the nose.

Families can take reasonable steps without giving up water play. Choose splash pads and interactive fountains that look clean and are clearly maintained. Discourage children from putting their faces in water from decorative features, fountains, or backyard creeks that are not disinfected. In warm freshwater, keep heads above water or use nose clips, and use distilled, sterile, or previously boiled water for sinus rinses.

The report does not say whether the El Futuro feature fell under state pool or splash pad inspection rules. That is a fair question for operators of any interactive water attraction open to children, and one parents can ask directly.


Symptoms and Timing Parents Should Know

Symptoms usually begin about five days after exposure, with a range of one to 12 days, according to the report. They typically start with a severe headache and can include fever, nausea, vomiting, and stiff neck, then progress quickly to confusion, seizures, and coma. Death usually occurs within about five days after symptoms begin.

Anyone who develops a severe headache, fever, or stiff neck within two weeks of contact with warm freshwater or untreated water should seek emergency care and tell clinicians about the water exposure. That detail can speed diagnosis, because early symptoms can resemble more common infections such as bacterial meningitis.

With the investigation complete, the next steps rest with facility operators. The El Futuro feature remains closed, and the pool must be repaired and cleaned before reopening. Officials still cannot prove where the exposure occurred, and MedicalDaily will update this story if state officials release further findings.


Key Questions Answered

What did North Carolina investigators find? A Sept. 15 state report named an interactive garden water feature at El Futuro in Durham County as the most likely source of the teen's fatal Naegleria fowleri infection, based on non-viable amoeba DNA, poor disinfection, and the exposure timeline.

Is the source confirmed? No. The report states that the investigation does not allow officials to conclusively determine where the exposure occurred.

Were other places tested? Yes. Investigators tested an Orange County apartment pool and two Alamance County ponds. Naegleria fowleri was not detected at those sites, and they were judged unlikely sources.

How do people get infected? Only when water containing the amoeba enters the nose. Drinking contaminated water does not cause infection, and the illness does not spread between people.

Are splash pads and pools safe? Well-maintained pools have not been linked to documented cases. Poorly maintained splash pads have been tied to rare infections, so maintenance matters.

What symptoms should families watch for? Severe headache, fever, nausea, vomiting, or stiff neck within about two weeks of exposure to warm freshwater or untreated water calls for emergency care.

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