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Study on infection of transfusion transmitted virus in serum, breast milk of pregnant women and umbilical venous blood from their newborns

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY
Issue:
6
DOI:
10.3760/j.issn:0529-567X.2001.06.003
Key Word:
DNA病毒感染;乳,人;疾病传播,垂直;胎血

Abstract: 目的了解输血传播病毒(TTV)在孕妇血清、乳汁及新生儿脐血中的感染状况, 探讨TTV的传播途径。方法用半巢式聚合酶链反应方法对150例孕妇血清、乳汁及新生儿脐血标本,进行TTV DNA扩增,对8例PCR阳性扩增产物再进行直接测序。结果(1)150例孕妇血清TTV DNA的阳性率为11.3%(17/150),17例孕妇血清TTV DNA阳性者中,乳汁阳性11例,其新生儿脐血均为阴性。(2)检测3例孕妇血清TTV DNA序列及乳汁TTV DNA序列,其核苷酸同源性为97.6%~99.2%;5例孕妇血清TTV DNA序列之间同源性为71.5%~92.8%,与日本原型株N22的核苷酸及氨基酸序列同源性为71.5%~92.8%。结论孕妇血清及乳汁中存在TTV感染,经乳汁传播可能是该病毒感染的主要方式之一。

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