AMBLYOMMA-AMERICANUM - A POTENTIAL VECTOR OF HUMAN EHRLICHIOSIS

被引：199

作者：

ANDERSON, BE ^{[1
]}

SIMS, KG ^{[1
]}

OLSON, JG ^{[1
]}

CHILDS, JE ^{[1
]}

PIESMAN, JF ^{[1
]}

HAPP, CM ^{[1
]}

MAUPIN, GO ^{[1
]}

JOHNSON, BJB ^{[1
]}

机构：

[1] CTR DIS CONTROL & PREVENT,NATL CTR INFECT DIS,DIV VECTOR BORNE INFECT DIS,FT COLLINS,CO 80522

来源：

AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE | 1993年 / 49卷 / 02期

关键词：

D O I：

10.4269/ajtmh.1993.49.239

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 [公共卫生与预防医学]; 120402 [社会医学与卫生事业管理];

摘要：

Polymerase chain reaction primers specific for Ehrlichia chaffeensis were used to amplify DNA from extracts of pooled ticks. Amplification was performed on extracts from 140 pools (1,579 total ticks) consisting of three tick genera collected from five states. The characteristic 389-basepair product was observed after amplification of extracts from seven different pools of adult Amblyomma americanum (117 pools, 1,462 ticks), but not from pools of nymphs. No specific product was observed after amplification of 20 pools (105 ticks) of Dermacentor variabilis and three pools of Ixodes scapularis (12 ticks). Ehrlichia chaffeensis was present in A. americanum at a minimum frequency of greater-than-or-equal-to 0.48%, suggesting that A. americanum may be a vector of human ehrlichiosis.

引用

页码：239 / 244

页数：6

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