国立療養所における「非定型」抗酸菌による肺疾患について (1974〜75年度報告)

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In aids to obtain accurate prevalence rates of mycobacteria other than Mycobacterium tuberculosis and the prevalence of lung disease due to these organisms in this country, a cooperative study was carried out by twelve Japanese National Chest Hospitals in various places, using the same technique of screening for these organisms, p-nitrobenzoic acid-Ogawa egg medium. The patients being hospitalized in June, September and December 1974 and March 1975 were the subjects of the study. Prevalence of the mycobacteria other than M. tuberculosis was high in five hospitals located in the South Pacific Ocean-coast. These area correspond to principal industrial area in this country. Most frequently isolated mycobacterial species was M. avium-intracellulare complex (73.8 per cent), the second M. gordonae (12.0 per cent), the third and the fourth, M. kansasii and M. fortuitum (2.7 per cent), and the fifth M. nonchromogenicum complex (2.2 per cent). Gordona organisms were also found at a high rate (3.6 per cent). M. avium-intracellulare complex were isolated in all hospitals at highest rate. Prevalence of lung disease due to the mycobacteria other than M. tuberculosis was high in four hospitals located in the South Pacific Ocean-coast, where the prevalence of the mycobacteria was high. Disease due to M. kansasii was closely related to Tokyo area. Of disease due to all mycobacteria other than M. tuberculosis, prevalence of disease due to M. avium-intracellulare complex reached 95 per cent. The prevalence rates of various mycobacterial species and those of diseases due to various mycobacteria were almost similar to those of the previous study in the year 1971 to 72. However, significant increase in the prevalence of diseases due to mycobacteria other than M. tuberculosis was observed in recent three years. The age of patients with disease due to M. avium-intracellulare complex was significantly older than the age of patients with disease due to M. kansasii.
日本結核病学会の論文

国立療養所における「非定型」抗酸菌による肺疾患について (1974〜75年度報告)

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