... vertical distribution 垂直分布 vertical infection 垂直传染 vertical resistance 垂直抗性 ...
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We do the same studying. Finally, we get the conclusion:When the vertical transmission rate equal to 1, the disease will be to local infection.
得到结论：当传染病的垂直传染率为1时，疾病一旦流行就会成为地方性传染病。
参考来源 - 非线性微分动力系统的定性分析This study is useful for prevention and intervention of mother-to-fetus HCV vertical transmission under the situation of good control of blood and blood products safety.
本研究在我国血液制品安全性问题得到第一军医大学硕士学位论文较好控制的新形势下，对母婴间HCV垂直传染的预防和早期干预具有重要意义。
参考来源 - 丙型肝炎病毒的垂直传播研究·2,447,543篇论文数据，部分数据来源于NoteExpress
经蛋传试验表明，该株病毒有可能经胚蛋垂直传染。
一项研究表明，与服用安慰剂妇女25%的传染率相比，使用齐多夫定的产妇垂直传染率被减少到8%。
A study shows it cuts the rate of maternal transmission to 8% - in women taking a placebo the rate was 25%
传染病动力学模型的分析与研究是当今的热点问题之一，本文构造了两类具有垂直传染的SIRS传染病模型。
It becomes one of the hot issues to analyse and study the infectious disease dynamic model. Two kinds of SIRS infectious disease models with vertical infection were constructed in the article.
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