据《卫报》报道，美国总统特朗普签署了一项行政令，支持将目前推荐给儿童的疫苗数量减半的计划。

该行政令要求卫生部门重新评估现行疫苗接种计划，减少"非核心"疫苗的推荐。医学专家对此表示强烈反对，认为此举可能使数百万儿童失去对麻疹、脊髓灰质炎等严重疾病的保护。

美国儿科学会发表声明称，现行疫苗接种计划经过数十年科学研究验证，是保护儿童健康的最有效手段之一。削减疫苗推荐可能引发可预防疾病的再次爆发。

公共卫生专家警告，这一政策变化可能对全球疫苗接种信心产生负面影响。

[Brief] Trump Order Endorses Plan to Halve Recommended Childhood Vaccines

US President Donald Trump has signed an executive order endorsing a plan to halve the number of vaccines currently recommended for children, the Guardian reports.

The order directs health agencies to reassess the current vaccination schedule, reducing “non-core” vaccine recommendations. Medical experts have strongly opposed the move, warning it could leave millions of children unprotected against serious diseases such as measles and polio.

The American Academy of Pediatrics issued a statement saying the current vaccination schedule is backed by decades of scientific research and is one of the most effective tools for protecting children’s health.

Public health experts warn the policy change could negatively impact global vaccination confidence.