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[Pseudomonas infection associated with whirlpool bath].

A Lindberg1, P Rasmussen, J Steensberg

  • 1Infektionskliniken, Länssjukhuset, Halmstad.

Ugeskrift for Laeger
|November 30, 1992
PubMed
Summary

Low chlorine levels in whirlpool spas were linked to a follicular rash outbreak in bathers. Pseudomonas aeruginosa was identified as the causative agent, highlighting the need for proper spa maintenance and regulation.

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Area of Science:

  • Environmental Health
  • Microbiology
  • Public Health

Background:

  • Whirlpool spas can harbor microorganisms if water quality is not maintained.
  • Recreational waterborne illnesses are a significant public health concern.

Observation:

  • A follicular rash outbreak occurred among approximately 20 individuals after using a whirlpool spa with very low free chlorine concentration (0.1 mg/l).
  • No illnesses were reported among bathers using spas with acceptable chlorine levels (0.9-1.2 mg/l).

Findings:

  • Pseudomonas aeruginosa, belonging to the same sero-group and phagetype, was isolated from both an affected patient and the spa's piping system.
  • This indicates Pseudomonas aeruginosa contamination within the spa's infrastructure.

Implications:

  • Maintaining adequate chlorine levels is crucial for preventing Pseudomonas aeruginosa growth and subsequent infections in whirlpool spas.
  • Stricter adherence to installation guidelines and operational regulations for whirlpool spas is essential.
  • Reinforcement of existing regulations by environmental protection agencies is recommended to ensure public safety.

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