Prevalence of thermophilic campylobacters in crows (Corvus levaillantii, Corvus corone) and serogroups of the isolates.

S Maruyama, T Tanaka, Y Katsube, H Nakanishi, M Nukina
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引用次数: 16

Abstract

A total of 500 fecal droppings of crows collected from a seashore of an ocean bay and from a cemetery on a hill surrounded by a forest were examined for thermophilic campylobacters, and the Skirrow's biovars and Penner's serogroups of the isolates were determined. The organisms were isolated from 169 (62.6%) of 270 seashore crow samples and 106 (46.1%) of 230 cemetery crow samples. During the investigation period from May 1986 to April 1987, the monthly isolation rate of thermophilic campylobacters in the seashore crow varied from 32.0 to 85.0%. C. jejuni, C. coli, and C. laridis were isolated from 150, 21 and 14 samples, respectively. In case of the cemetery crow, the monthly isolation rate varied from 20.0 to 75.0%, and C. jejuni, C. coli, and C. laridis were detected from 80, 12 and 16 samples, respectively. Among 192 strains of C. jejuni selected from 98 seashore and 57 cemetery crow samples, 106 (93.0%) of 114 seashore crow strains and 69 (88.5%) of 78 cemetery crow strains were identified as Skirrow's biovar I. Of 192 strains of C. jejuni serogrouped, 169 strains were classified into 20 serogroups. The Penner's serogroup 2, one of common serogroups among poultry and human isolates in Japan, was the most predominant in crow strains.

乌鸦嗜热弯曲杆菌(Corvus levaillantii, Corvus corone)的流行率及分离物的血清群。
从一个海湾的海岸和一个被森林包围的小山上的墓地收集了500只乌鸦的粪便,检查了嗜热弯曲杆菌,并确定了分离株的Skirrow生物多样性和Penner血清群。270份滨海鸦和230份墓地鸦中分别有169份(62.6%)和106份(46.1%)分离出该菌。在1986年5月至1987年4月的调查期间,海鸦中嗜热弯曲杆菌的月分离率为32.0% ~ 85.0%。分别从150份、21份和14份样品中分离到空肠梭菌、大肠梭菌和laridis梭菌。在墓地乌鸦中,月分离率为20.0% ~ 75.0%,分别检出空肠C. 80份、大肠C. 12份和laridis C. 16份。从98个海滨和57个墓地乌鸦样本中筛选出192株空肠梭菌,114株海滨乌鸦中有106株(93.0%)鉴定为Skirrow生物变种i型,78株墓地乌鸦中有69株(88.5%)鉴定为Skirrow生物变种i型。Penner's血清2型是日本家禽和人类分离株中常见的血清型之一,在乌鸦株中最占优势。
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