2021 Lancet研究显示,MMR疫苗提供终身保护,每年略有减少,部分原因是英格兰接种疫苗的人中麻疹病例增加。 2021 Lancet study reveals MMR vaccine provides lifelong protection with slight annual waning, partly explaining increased measles cases among vaccinated individuals in England.
《柳叶刀公共卫生》最近的一项研究表明，1988 年推出的 MMR 疫苗可提供终生预防麻疹的保护，但在第二剂后每年可能会略微减弱 0.04%。 A recent study in The Lancet Public Health reveals that the MMR vaccine, introduced in 1988, provides lifelong protection against measles but may wane slightly by 0.04% per year post-second dose. 这一逐步下降可能部分地解释了英格兰全面接种疫苗的人中麻疹病例上升的原因,英国的接种率只有85%,低于世卫组织规定的95%的目标。 This gradual decrease could partly explain rising measles cases among fully vaccinated individuals in England, where uptake is only 85%, below the 95% target set by the WHO. 保持高接种率对于预防爆发疾病至关重要,因为MMR疫苗仍然非常有效。 Maintaining high vaccination rates is crucial to prevent outbreaks, as the MMR vaccine remains highly effective.