垂直传播(vertical transmission),也称母婴传播或围生期传播。指在围生期病原体通过胎盘、产道或哺乳由亲代传播给传给子代的方式。垂直传播病原体以病毒多见,是病毒感染的特点之一,很多病毒都可通过垂直方式由母体传染给胎(婴)儿,如风疹病毒、巨细胞病毒、乙型肝炎病毒、HIV等10余种病毒可通过胎盘感染胎儿,引起死胎、流产、早产或先天畸形。存在于妇女产道的病毒,在分娩时可能引起新生儿感染。垂直传播较难控制,应注意孕期及围生期保健预防。
... 垂直尺度 vertical dimension; 垂直传播 vertical propagation; 垂直磁化 perpendicular magnetization; ...
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. The experimental evidences were offered for vertical transmission of HBV genome by germ cells and for vertical spread of HBV infection.
为HBV感染的垂直传播提供了实验证据。
参考来源 - 乙型肝炎病毒基因组的垂直传递及其突变与表达This virus is the recombinant of envelope of ALV and avian endogenous retroviruses. therefore,ALV-J can pass through horizontal and vertical transmission.
此病毒为ALV和禽内源性反转录病毒囊膜的重组体,因此,ALV-J可通过水平传播和垂直传播。
参考来源 - ALV·2,447,543篇论文数据,部分数据来源于NoteExpress
可通过空气水平传播,也可经蛋垂直传播。
The infection can be transmitted horizontally by aerosol, as well as vertically through eggs.
因为所有这些患者都是出生时母婴垂直传播感染的。
Because all these patients are infected by the vertical transmission when they were born.
产前梅毒筛查和治疗对预防梅毒垂直传播有重要意义。
Antenatal routine screening and treatment for syphilis are important to prevent the vertical transmission of pregnant syphilis.
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