HHS官员:没有证据显示杀幼虫剂与小头畸形有关

2016-02-21 MedSci MedSci原创

虽然尚不能排除,但目前尚无证据表明在饮用水中添加杀幼虫剂杀灭蚊子与小头畸形发生率上升有关。

虽然尚不能排除,但目前尚无证据表明在饮用水中添加杀幼虫剂杀灭蚊子与小头畸形发生率上升有关。

有人指称杀幼虫剂吡丙醚增加出生缺陷。

杀幼虫剂吡丙醚增加出生缺陷是很难辩驳的理论。但越来越多的证据说明死产婴儿的大脑中存在致病病毒。

巴西联邦官员目前尚不认为Zika病毒与小头畸形之间存在一个明确的因果关系,但流行病学和实验室数据强烈显示妇女妊娠期间感染Zika病毒与出生婴儿小头畸形存在关联。

严格的病例对照研究将有助于确定最终结论。一些研究已经在巴西开始,研究结果可以说吗Zika病毒和出生婴儿小头畸形之间是否存在关联及关联强度,预计研究结果在几个月内就可发布。

紧急行动

无论NIAID和CDC正在调集资金资助Zika研究工作。美国总统奥巴马已要求18亿美元的紧急拨款以打击Zika病毒,包括控制蚊虫、疫苗研制、诊断测试、流行病学研究、帮助海外的合作伙伴,但国会尚未采取行动。

国会的行为越快越好,美国CDC有500名工作人员在从事有关Zika病毒的工作。

在波多黎各数十名患者已经发生感染,需要紧急行动。岛上成年人80%-90%感染登革热,在过去一年中25%的成年人已经感染了基孔肯雅热。登革热和基孔肯雅热这两种病毒性疾病是由埃及伊蚊传播的,埃及伊蚊也传播Zika病毒。

Zika病毒可能会快速广泛传播,埃及伊蚊被称为蚊子里的小强,因为埃及伊蚊很难被大量杀死。

美国CDC还需要做好处理成百上千的携带有Zika病毒的游客入境的准备。每年有40万美国人往来于Zika疫区。

美国CDC官员Frieden博士没有透露最终是否有可能进行旅行限制。

Frieden博士认为Ebola危机教会了世界维护监控系统发现和遏制此类快速传染性致命病毒疾病的重要性。Ebola的教训是永远对疾病流行趋势保持警觉。

原始出处:

1. Alicia Ault. HHS Officials: No Evidence of Larvicide Link to Microcephaly. Medscape Medical News. February 18, 2016.

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    2016-05-23 yige2015
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    2016-03-02 飞翔9899

    尊重科学,莫信谣言

    0

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    2016-02-23 wushaoling

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