In a report this month, the IMB warned that polio virus from vaccines is spreading uncontrolled in West Africa.

独立监测委员会在本月的一份报告中警告称，疫苗中的脊髓灰质炎病毒正在非洲西部" 失控地蔓延" 。

The IMB says that in the first quarter of 2013, there were only five reported piracy incidents off the Somali coast.

IMB 表示， 在 2013 年第一季度， 索马里沿海仅报告了五起海盗事件。

The IMB says more than half of all sea pirate attacks since the beginning of 2015 have been in Southeast Asia.

IMB 表示， 自 2015 年初以来， 超过一半的海盗袭击发生在东南亚。

But Pottengal Mukundan of the IMB warns it would be very easy for the situation to return to the bad old days.

但 IMB 的 Pottengal Mukundan 警告说， 情况很容易回到糟糕的过去。

The IMB director says the small tankers moving slowly along Southeast Asian coasts are also vulnerable because they sit low in the water.

IMB 主任说， 沿着东南亚海岸缓慢移动的小型油轮也很容易受到攻击， 因为它们处于低位水。