The overriding priority is to urgently stop the WPV3 outbreak, while maintaining high population immunity across west Africa to WPV1.

目前的重中之重就是在西非的野生1型脊灰病毒人群免疫仍维持在较高水平时，紧急阻止野生3型脊灰病毒的暴发流行。

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A disease outbreak early warning system is active and, as yet, no outbreaks of diseases have been confirmed, however concern of the disease outbreaks remains high.

疾病疫情早期预警系统处于运行状态，到目前为止，尚未发生经过证实的疾病疫情。但对疾病暴发的关注度仍然很高。

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Outbreak response activities include surveillance for early case detection, case management, chemoprophylaxis of close contacts and vaccination of the population at high risk.

暴发应对活动包括为及早发现病例进行监测、病例管理、密切接触者的化学预防以及对高危人口进行预防接种。

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In an outbreak of moral high-horsing that has (thankfully) now been purged out of me, I decided that tech stocks were overpriced and needed to fall further.

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Some people with herpes take antiviral drugs for years, while others just use them periodically -- for example, when they're starting a new relationship or anticipating a high-pressure situation. (Stress can up the risk of a herpes outbreak.) "It really is a very personal decision for patients, " Johnston says.

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