在过去四十年里，非洲国家向世界卫生组织报告了三百万例疑似病例，而在非洲中东部和南部地区，今年不断有新病例涌现。
In the last four decades, African countries reported over three million suspected cholera cases to the World Health Organization and new cases are cropping up this year in Africa’s east-central and southern regions.