类志贺邻单胞菌生态学调查研究

对类志贺邻单胞菌进行了生态学调查。调查自然水体标本398份,检出Ps99株细菌,平均检出率24.87%。本菌在水中一年四季均能检出,但夏秋较冬季检出率高。通过对动物的调查,证明该菌具有较广泛的天然宿主。在整个人群中的检出率为14.7%,腹泻病人检出率(13.15%)与正常人群比较无显著性差异(χ²=0.40,P>0.05),但农村高于城市,少儿高于成人,使用全部50个O抗原诊断血清进行血清型研究,可分型率71.08%,分布于42个血清O型,菌型极为分散。

A Study of Ecology of Plesiomonas Shigelloides

In order to understand further about its natural character for Plesiomonas Shigelloides (Ps) and the disease caused by this bacterial genus, we reported a special studying about ecology of Ps. We tested 398 samples from different natural water 99 strains of Ps were isolated, the average positive rate is 24.87%, the highest positive rate is in sewage-water samples. The genus of Ps can be isolated in all seasons, this rate is more in summer than in winter, its rate in pig is 2.56%, duck 21.70%, fish of fresh-water 29.22%, decorative animal 32.35%. This study have proved that Ps has birds natural host. Its positive rate is 14.70% in all population, 13.15% in diarrhoea patient, there is no significance difference (chi 2 = 0.40 P greater than 0.05), between normal and diarrhea patients. Positive rate in rural is more than city, and children higher than adult. By all 50 O sera we found that 71.08%, strains was serotype however, they fell into 42 O ser-types.