• Current efforts in malaria control are mainly based on the use of insecticide sprays and treated bed nets.

    VOA: special.2009.12.22

  • Current vaccines to protect against Rift Valley fever are limited to use in animals.

    VOA: special.2010.07.12

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定