Affiliation: * National Institute of Health, Department of Medical Sciences, Ministry of Health
**Provincial Public Health Pffice, Mae Hong son Province
***Academy of Science, The Royal Institute, Bangkok
Source: Journal of Health Science 2004; 13: 27-31
Language: Thai with English Abstract
Water specimens were taken from 18 natural hot springs in the four northern provinces of Thailand, namely, Mae Hong Son, Chiang Mai, Chieng Rai, Lampang and sent to the laboratories of the National Institute of Health, Department of Medical Sciences, Ministry of Public Health in Nonthaburi for determining the presence of the legionella organism and free-living ameba. Legionella pneumophila serogroup 6 was isolated from water specimen collected in Mae Hong Son province; ameba was not isolated from any the specimens. There was a clue suggestion that temperatures of the hot spring water might play an influential role in their existence of viable pathogenic organisms.