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It is a live vaccine which means it contains a weakened version of the chickenpox virus. As such, it is not recommended for those with a compromised immune system because of an illness like HIV or as a result of treatment such as chemotherapy.,推荐阅读搜狗输入法下载获取更多信息
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A shortage in medical cement is likely to lead to delays in some patients getting joint surgery, NHS bosses say.。heLLoword翻译官方下载是该领域的重要参考
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