One of the great public-health achievements of the 20th century is vaccination against infectious diseases. It saves millions of lives and billions of dollars annually (Centers for Disease Control and Prevention [CDC], 1999). Vaccination schedules have expanded steadily over the years as effective vaccines have increased in number. This success has produced strong public support for childhood vaccination (Gellin, Maibach, & Marcuse, 2000).

中文翻译：

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增加疫苗接种：将心理学付诸实践

预防传染病是20世纪最大的公共卫生成就之一。它每年可以挽救数百万条生命，并节省数十亿美元（疾病控制与预防中心[CDC]，1999年）。多年来，随着有效疫苗数量的增加，疫苗接种计划稳步增长。这一成功为儿童接种疫苗提供了强有力的公众支持（Gellin，Maibach和Marcuse，2000年）。