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1991年至1995年在南非分离出的肠炎沙门氏菌肠炎血清型的噬菌体类型

Phage types of Salmonella enterica serovar Enteritidis isolated in South Africa from 1991-1995.

作者信息

Maré L, Van Der Walt M L, Dicks L M

机构信息

Onderstepoort Veterinary Institute, South Africa.

出版信息

Onderstepoort J Vet Res. 2000 Jun;67(2):129-33.

Abstract

A total of 615 strains of Salmonella enterica serovar Enteritidis (SE), received from 1991-1995 at the Onderstepoort Veterinary Institute (OVI), were phage typed. Most SE isolates (54,7%) originated from poultry followed by humans (28,5 %) and poultry eggs (9,6 %). Phage type 34 was the most prevalent (40,5 %) of all isolates, followed by phage type 4 (33,8 %). Other phage types identified were 1, lb, 4a, 7, 7a, 9a, 14, 24, 24var and 35 (in total 2,4% of isolates). Most isolates of SE were received from the Western Cape Province (47,4%) and Gauteng (22,3%). In poultry phage type 4 was dominant, but in humans, eggs, goats, ducks, sheep, pigs and rabbits, phage type 34 was the dominant type. It appeared as if the poultry-associated epidemic of SE in South Africa that occurred from 1991-1995 originated in the Western Cape Province during 1991 amongst poultry and then spread from there to humans and eggs and then to the rest of the country, where it emerged during 1993. Results indicate that phage type 34 was the dominant phage type from 1991-1993, but during 1994-1995 its presence declined. During this latter period the presence of phage type 4 increased. This may suggest that two smaller epidemics consisting of the two different phage types might have been responsible for the epidemic that occurred from 1991-1995.

摘要

1991年至1995年期间, Onderstepoort兽医研究所(OVI)共收到615株肠炎沙门氏菌肠炎亚种(SE),并进行了噬菌体分型。大多数SE分离株(54.7%)来源于家禽,其次是人类(28.5%)和禽蛋(9.6%)。噬菌体分型34是所有分离株中最常见的(40.5%),其次是噬菌体分型4(33.8%)。鉴定出的其他噬菌体分型有1、1b、4a、7、7a、9a、14、24、24var和35(占分离株总数的2.4%)。大多数SE分离株来自西开普省(47.4%)和豪登省(22.3%)。在家禽中,噬菌体分型4占主导地位,但在人类、禽蛋、山羊、鸭子、绵羊、猪和兔子中,噬菌体分型34是主导类型。1991年至1995年期间在南非发生的与家禽相关的SE疫情似乎于1991年起源于西开普省的家禽中,然后从那里传播到人类和禽蛋,再传播到该国其他地区,并于1993年在这些地区出现。结果表明,噬菌体分型34在1991年至1993年期间是主导噬菌体分型,但在1994年至1995年期间其出现频率下降。在后一时期,噬菌体分型4的出现频率增加。这可能表明,由两种不同噬菌体分型组成的两次较小疫情可能是1出现在1991年至1995年期间的疫情的原因。 991年至1995年期间的疫情的原因。

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