It is important to recognize when this phenomenon occurs and to adjust the recommended immunization schedule accordingly.

当这一现象发生时应注意识别，并对推荐的免疫接种程序做出相应的调整。

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The responses tended to have two peaks: one following the start of the immunization schedule and another several months later, after additional immunizations.

该反应有2个峰：1个出现于开始免疫后，另一个出现于其他免疫后的数个月。

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This paper introduced the recommended immunization schedule for persons aged 0 ~ 18 years old in the United States in 2008 which can provide the reference for the traveler's vaccination.

本文介绍2008年美国0 ~ 18人员推荐免疫程序及其主要变化，从而为旅行者预防接种提供参考和借鉴。

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An updated 2013 immunization schedule for children and adolescents also recommends pregnant adolescents receive the Tdap vaccine.

WSJ: Panel Pushes Vaccine for Pregnant Women

The new recommendation for pregnant women is contained in the 2013 version of the U.S. adult immunization schedule, updated yearly by the CDC's vaccine advisory panel.

WSJ: Panel Pushes Vaccine for Pregnant Women

However, in the U.S., the current immunization schedule for this disease begins for high-risk children at two years of age and is recommended for all at age 11.

FORBES: Immunizing Bureaucrats Against Complacency