Young S A, Halpin T J, Johnson D A, Irvin J J, Marks J S
Am J Public Health. 1980 Apr;70(4):422-4. doi: 10.2105/ajph.70.4.422.
The Ohio Department of Health initiated a program of mailing an immunization reminder to the mothers of six-month-old children predicted to be at high risk of failure to receive vaccinations based on birth certificate information. The evaluation results indicated a 50% gain in immunizations amongst children whose parents received the letter when compared with those not receiving the letter.
俄亥俄州卫生部启动了一项计划,根据出生证明信息,向预计极有可能未接种疫苗的6个月大儿童的母亲邮寄免疫提醒函。评估结果表明,与未收到信函的儿童相比,父母收到信函的儿童的免疫接种率提高了50%。