侵袭性大肠埃希氏菌(EIEC)的噬菌体分型研究

Typing Research on Phages of EIEC

本文报告160株从腹泻患者和健康人粪便标本中分离的侵袭性大肠埃希氏菌(EIEC),应用何晓青等的埃希氏菌属分型噬菌体分型结果,95.6％的菌株(153株)可以分型,分属于17个噬菌体型,4.4％的菌株(7株)不能分型,其中66.7％的菌株(107株)分布于2/4,6/2,6/6等三个噬菌体型。从腹泻患者标本分离的80株EIEC,76株可以分型,分属于9个噬菌体型,78.8％的菌株(63株)分布于2/4,6/2,6/6三个噬菌体型。从健康人标本分离的80株EIEC,77株可以分型,分属于17个噬菌体型,48.8％的菌株(39株)分布于6/2,6/6二个噬菌体型,其余各型菌株较少而分散。患者与健康人分离的EIEC主要噬菌体型基本相同,实验说明引起本病流行,健康带菌者可能是主要传染源。

This paper reports the results of phage typing of 160 EIEC strains obtained from diarrheal patients and healthy people by the methods of He Xiaoqin. It showed that 95. 6% of the strains (153 steains) could be divided into 17 phage types, 4. 4% (7 strains) couldn't be typed. Among all strains, 66. 7% (107 strains) were distributed to the three phage types of 2/4, 6/2, 6/6. 76 out of 80 strains of EIEC from diarrheal patients' fecal samples could be typed to 9 phage types respectively. 78. 8% (63 strains) were distributed to the three phage types of 2/4, 6/2, 6/6. 77 out of 80 EIEC strains from healthy people could be typed to 17 phage types, 48. 8% (39 strains) were distributed to two phage types of 6/2, 6/6. Other phage types were found seldom and dispersedly.