Estimated immunization coverage for many areas in the region is low, with, for example, Somalia at 30%, Djibouti at 64%, and Ethiopia at 66%.

据估计，该区域许多地区的免疫覆盖率低，例如索马里为30%，吉布提64%和埃塞俄比亚66%。

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Other children's lives are still at risk, however, so it's time we refocus our attention on sustaining our immunization efforts in countries where rates are low.

然而，另一些孩子的生命仍处于危险之中，所以我们现在应当重新注重在免疫覆盖率低下的国家继续我们的免疫工作。

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The study suggested that immunosuppressed HIV-infected children have a low persistence of antibodies to the vaccines of the Expanded Program on Immunization (EPI, WHO).

研究报告表明，感染艾滋病毒并免疫抑制的的儿童对免疫扩大计划（EPI， WHO）疫苗的有一个低持久性抗体。

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