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Volume 28, Number 1—January 2022

Potential Association of Legionnaires’ Disease with Hot Spring Water, Hot Springs National Park and Hot Springs, Arkansas, USA, 2018–2019

Allison E. JamesComments to Author , Kurt Kesteloot, J. Terry Paul, Richard L. McMullen, Shirley Louie, Catherine Waters, Jennifer Dillaha, Joel Tumlison, Dirk T. Haselow, Jessica C. Smith, Sooji Lee, Troy Ritter, Claressa Lucas, Jasen Kunz, Laura A. Miller, and Maria A. Said
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A.E. James, J.C. Smith, S. Lee, T. Ritter, C. Lucas, J. Kunz); US Public Health Service, Rockville, Maryland, USA (K. Kesteloot, T. Ritter, M. Said); US National Park Service, Washington, DC, USA (K. Kesteloot, L.A. Miller, M. Said); Arkansas Department of Health, Little Rock, Arkansas, USA (J.T. Paul, R.L. McMullen, S. Louie, C. Waters, J. Dillaha, J. Tumlison, D.T. Haselow)

Main Article

Table 2

Environmental sample collection dates and locations, laboratory, and Legionella spp. culture results, HSNP and Hot Springs, Arkansas, USA, 2018–2019*

Sample collection date Laboratory Locations† Culture result
2018 Oct 3
Bathhouse A (poolside shower, individual shower, nearby cooling tower)
2019 Jan 9
Bathhouse A (poolside shower, waterfall in 102°F pool, shower in women's locker room, shower in men's locker room, sauna cave, soaking tub, nearby outdoor cooling tower)
2019 Jul 15–16
Bathhouse A (pool area air-conditioning unit, basement wood board, pool filter, hot water main supply line) Negative
5 decorative outdoor fountains Negative
Administration building hot water reservoir Negative
2 nearby cooling towers
2019 Sep 18
Bathhouse A (poolside shower)‡ Positive
2 decorative fountains near HSNP boundary Negative
Administration building hot water reservoir
2019 Oct 4
Bathhouse A (soaking tub, basement pipe) Positive
Bathhouse B (soaking tub) Negative
Bathhouse C (hot and cooled water soaking tub faucets) Positive
Bathhouse D (sink) Negative
Bathhouse E (sink) Negative
Hot springs waterfall display Negative
Hot springs water jug-filling station Negative
Cooled or tempered water reservoir Negative
4 decorative outdoor fountains Negative
Facility X (hot spring water spigot) Positive
Nearby cooling tower
2019 Nov 12 B Administration building (hot spring water reservoir, 2 pump valves, hot water overflow) Negative
3 jug fountains Negative
1 decorative outdoor fountain Negative
Bathhouse A (basement valve) Negative
Bathhouse B (basement valve) Negative
Bathhouse C (basement valve, 2 guest room soaking tubs) Negative
Bathhouse E (basement valve) Negative
Facility X (2 pump valves, 2 basement valves) Negative
Hot springs water reservoirs (4 samples) Negative
Facility Y (hot spring water supply, cooled spring water supply) Positive

*Bold text denotes locations of positive samples. HSNP, Hot Springs National Park. †Bathhouses A and B are spas; bathhouse C is a hotel; bathhouse D houses staff offices and a retail store; bathhouse E is a brewery restaurant. Facility X is a hotel and spa; facility Y is medical center.

Main Article

Page created: October 27, 2021
Page updated: December 20, 2021
Page reviewed: December 20, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.