送交者: bgy 于 2010-09-10, 00:25:25:
回答: 确实, 所谓强化免疫活动 由 bgy 于 2010-09-10, 00:15:56:
http://www.euro.who.int/en/what-we-do/health-topics/diseases-and-conditions/measles-and-rubella/publications/pre-2009/field-guide-for-planning-and-implementing-supplemental-immunization-activities-for-measles-and-rubella