The UK will “urgently” offer hundreds of thousands of London-based children aged one to nine a polio vaccine booster as sewage surveillance suggests transmission is occurring in parts of the capital.
英国将“紧急”为伦敦数十万1至9岁儿童提供脊髓灰质炎疫苗加强针,因为污水监测显示首都的部分地区正在发生传播。
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