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431.
S Yoshida Y Mizuguchi K Mizue H Sakamoto S Urabe 《Japanese journal of medical science & biology》1987,40(5-6):171-174
Prevalence of hepatitis B (HB) markers, antibodies to human T cell leukemia virus (HTLV-1) and antibodies to human immune deficiency virus 1 (HIV-1) in prostitutes working in Fukuoka city were studied. Sera were collected from 237 prostitutes during January-September, 1986. Among them, 9 (3.8%) were HB virus surface-antigen (HBs Ag) positive, of whom, 3 were HBe antigen positive and the remaining 6 were anti-HBe positive. The positive rate of anti-HBs was 34.2%. The incidence of anti-HTLV-1 in the prostitutes was 5.9%. These incidences are considered to be within the usual range in Kyushu district. No seropositive case for anti-HIV was found. 相似文献
432.
Pathogenesis of Vibrio parahaemolyticus: intraperitoneal and orogastric challenge experiments in mice 总被引:1,自引:0,他引:1
K Hoashi K Ogata H Taniguchi H Yamashita K Tsuji Y Mizuguchi N Ohtomo 《Microbiology and immunology》1990,34(4):355-366
It has been noted that V. parahaemolyticus isolated from patients with food poisoning are almost always thermostable direct hemolysin (TDH)-positive, whereas, isolates from foods or environmental sources are usually TDH-negative. The virulence of V. parahaemolyticus in mice was examined by using intraperitoneal and orogastric challenge models, where the strains used were those isolated from patients and foods with food poisoning and included TDH-positive and -negative. The LD50 in mice was estimated to be approximately 10(7) in the former and 10(8) in the latter challenge model. In the mice killed by challenge, either intraperitoneal or orogastric, the following pathological changes were almost always observed: swelling, redness and fluid accumulation in the small intestine, particularly the upper part of it. Histologically, congestion, edema, and vacuolation were observed in mucosal and submucosal tissues; furthermore, ulceration at tips of some villi was noticed. The lethality and pathological finding in mice due to V. parahaemolyticus were demonstrated similarly in both challenge models and irrespective of the TDH phenotype of the strain used. It will be suggested that the findings in challenged mice may be attributed to enteropathogenic factor(s) other than TDH of V. parahaemolyticus. 相似文献