早晚推迟的早期疫苗有力地预测了MMR误射,导致麻疹病例上升,美国疫苗接种率下降。 Delayed early vaccines strongly predict missed MMR shots, contributing to rising measles cases and declining U.S. vaccination rates.

对超过321 000名美国儿童进行的一项研究发现,错过早期疫苗的儿童在2岁时更有可能错过MMR射击。 Children who miss early vaccines are far more likely to miss the MMR shot by age 2, a study of over 321,000 U.S. children found. 推迟或错过2个月和4个月的疫苗是孕产妇死亡率延迟的有力预测因素,及时早发疫苗的可能性增加了7倍。 Delayed or missed 2- and 4-month vaccines were strong predictors of MMR delays, with on-time early shots increasing MMR likelihood sevenfold. 只有78.4%的儿童及时接种了MMR,低于2021年的79.9%,而未接种疫苗的儿童到2024年将增加到7.7%. Only 78.4% received MMR on time, down from 79.9% in 2021, while unvaccinated children rose to 7.7% by 2024. 男孩、白人和非西班牙裔儿童或拉丁裔儿童,以及农村地区的儿童更可能未接种疫苗。 Boys, white and non-Hispanic or Latino children, and those in rural areas were more likely to be unvaccinated. 美国在2025年的麻疹病例超过2 000例,这是30多年来最高的病例,在疫苗接种率下降时提高了公共卫生方面的关切。 The U.S. saw over 2,000 measles cases in 2025—the highest in over 30 years—raising public health concerns as vaccination rates decline. 专家强调儿科早期的参与,以建立信任和克服犹豫不决。 Experts stress early pediatrician engagement to build trust and combat hesitancy.