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A 1-Year Follow-Up Study of Anti-Legionella Antibodies in Users of Japanese 24-Hour Hot Water Baths

Irie, Masahiro ; Miyamoto, Hiroshi ; Ishimatsu, Sumiyo ; Nagata, Shoji ; Yoshida, Shin‐ichi

Journal of Occupational Health, 2001, Vol.43 (1), p.46-49 [Periódico revisado por pares]

Tokyo: JAPAN SOCIETY FOR OCCUPATIONAL HEALTH

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  • Título:
    A 1-Year Follow-Up Study of Anti-Legionella Antibodies in Users of Japanese 24-Hour Hot Water Baths
  • Autor: Irie, Masahiro ; Miyamoto, Hiroshi ; Ishimatsu, Sumiyo ; Nagata, Shoji ; Yoshida, Shin‐ichi
  • Assuntos: Antibody ; Follow‐up ; Infection ; Legionella ; Recycled bath water
  • É parte de: Journal of Occupational Health, 2001, Vol.43 (1), p.46-49
  • Descrição: Introduction The 24-h hot water bath (24HHWB), which maintains a consistent temperature all day long with the use of recycled bath water, has been widely used in Japan in recent years. Most of the 24HHWBs purify the bath water through enzymatic activation by adhering microorganisms to carriers made of activated charcoal, granite porphyry, quartzite, ceramic, coral and other matrices. To decrease the number of hazardous bacteria as much as possible, the 24HHWBs are equipped with additional disinfecting systems, such as ultraviolet and ozone. Chlorination of the bath water has also been attempted. In spite of such technical improvements, Legionella pneumophila (Lp), which is a causative agent of Legionnaires disease and Pontiac fever 1), has been recently isolated from this apparatus 2). This contamination has caused great public concern. Among more than 14 serogroups (SGs) of Lp, SG 1 is considered to be responsible for more than 80% of cases of legionellosis caused by Lp 3). This tendency is also found in Japan 4). In disagreement with such findings, SG 5 predominates among the SGs investigated in the 24HHWB water 2). This implies that the mode of proliferation of legionellae in the 24HHWB water may be different from that in other environments.
  • Editor: Tokyo: JAPAN SOCIETY FOR OCCUPATIONAL HEALTH
  • Idioma: Japonês;Inglês
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