Conclusion: the infection of human parvovirus B19 exists in the pregnant women in Zhengzhou, which may explain the unidentified reason abortion or stillborn foetus.
结论：郑州市孕妇中存在人微小病毒B19的感染，可能导致不明原因流产或死胎。
Conclusion: the infection of human parvovirus B19 exists in the pregnant women in Zhengzhou, which may explain the unidentified reason abortion or stillborn foetus.
结论：郑州市孕妇中存在人微小病毒B19的感染，可能导致不明原因流产或死胎。
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