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13 天
PCV15 与 PCV20 疫苗对法国婴儿 PCV13 血清型突破性肺炎球菌疾病影响的 ...
肺炎球菌结合疫苗(Pneumococcal conjugate vaccines,PCVs)的出现,在降低肺炎球菌疾病发病率方面发挥了重要作用。然而,随着疫苗价数的不断提高,虽然能够覆盖更多的血清型,但也带来了免疫原性降低的问题,这可能导致突破性疾病(Breakthrough disease)的发生。
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