Reis M H, Matos D P, de Castro A F, Toledo M R, Trabulsi L R
Infect Immun. 1980 Apr;28(1):24-7. doi: 10.1128/iai.28.1.24-27.1980.
The relationship among O groups, O:H serotypes and enterotoxigenic phenotypes was examined in 76 Escherichia coli strains isolated in Brazil from different sources. Of the 17 heat-labile and -stable enterotoxin (LT/ST)-producing strains whose O antigens were identified, 15 belonged to serotypes O6:H16 (7 strains), O63:H- (5 strains), and O139:H28 (3 strains). All 11 ST strains were in group OO128PAC, which was represented by four O:H serotypes. The 23 LT strains with the O antigen identified were distributed among serotypes of 14 O groups. Colonization factor CFA/I was not found in any of the LT strains, but it was found in six LT/ST and three ST strains. On the whole, each E. coli O:H serotype had a particular fermentation pattern. LT/ST as well as ST strains were all isolated from patients with diarrhea, whereas LT strains were isolated from patients with diarrhea, normal children, food, and river water.
对从巴西不同来源分离出的76株大肠杆菌菌株,研究了O群、O:H血清型与产肠毒素表型之间的关系。在17株已鉴定出O抗原的产热不稳定和稳定肠毒素(LT/ST)菌株中,15株属于血清型O6:H16(7株)、O63:H-(5株)和O139:H28(3株)。所有11株ST菌株都属于OO128PAC群,该群由4种O:H血清型代表。23株已鉴定出O抗原的LT菌株分布在14个O群的血清型中。在任何LT菌株中均未发现定居因子CFA/I,但在6株LT/ST和3株ST菌株中发现了该因子。总体而言,每种大肠杆菌O:H血清型都有特定的发酵模式。LT/ST以及ST菌株均从腹泻患者中分离得到,而LT菌株则从腹泻患者、正常儿童、食物和河水中分离得到。