This vaccine is unavailable and out-of-reach financially in rural Africa and Asia, which is why chronic hepatitis B rates remain stubbornly high and are projected to remain unchanged.
在非洲和亚洲的农村地区,这种疫苗是无法获得的,经济上也负担不起,这就是为什么慢性乙型肝炎患病率仍然居高不下,预计这种情况将保持不变。
As long as this first rate into the B is small compared to one of those two rates, B we're never going to pile up B.
只要生成b的第一个速率,小于这两个速率其中之一,我们就绝不会积聚。
An estimated two billion people are infected with hepatitis B. the rates are highest in China and other parts of Asia.
全球预计有20亿人感染了乙肝。其中中国和亚洲其他地区的感染率最高。
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