Pfizer's Lyme disease vaccine trial hampered by lack of cases
辉瑞的莱姆病疫苗试验因病例稀少而受阻

Pfizer’s final-stage trial of its long-awaited Lyme disease vaccine missed its primary endpoint, but the drugmaker said it still plans to try to take the experimental shot to regulators for approval.
辉瑞久候的莱姆病疫苗在最终阶段试验中未达到主要终点，但这家制药商表示，仍计划推动这款候选疫苗提交监管机构审批。