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Serosurveillance for double infection with Pseudomonas pseudomallei in tuberculous patients.
Authors:K Kanai  S Akksilp  P Naigowit  V Chaowagul  T Kurata
Affiliation:National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand.
Abstract:The serosensitivity to Pseudomonas pseudomallei antigen in pulmonary tuberculous patients was surveyed in Ubon Ratchathani Province, a melioidosis-endemic and tuberculosis-prevalent area in Thailand. Indirect hemagglutination assay (IHA) and indirect immunofluorescent assay (IFA) for IgM and IgG were employed for the measurement of antibody levels, with cut-off points set at 1:160, 1:8, and 1:32, respectively. Retrospective protocol survey of clinical data was also conducted. From these studies, however, no evidence was obtained to show that tuberculous patients have a disposition to acquire double-infected with P. pseudomallei and to develop melioidosis. The serosensitivity was never higher than that of the general population of the province as represented by healthy blood donors, nor related with the clinical severeness. Tuberculosis and melioidosis appear to be mutually independent diseases without showing interrelated prevalence in the endemic area.
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