Snellman医生问:关于百日咳免疫接种的建议规定,儿童罹患经培养证实百日咳痊愈后毋需进一步接种百日咳菌苗,因为通常百日咳能提供防御嗣后感染的保护力。最近,我们看到,1名早产8周的婴儿于7月龄时罹患经培养证实的百日咳,并于15月龄时又再次发病。根据现行的免疫接种建议,对该婴儿于2、4和6月龄时接种DT,而不是DTP。然而,鉴于目前本 Dr. Snellman asked: The proposal for immunization against whooping cough requires that children who have been vaccinated with pertussis should not require further vaccination after they have been cured of pertussis, as pertussis usually provides protection against the subsequent infection. Recently, we have seen that a premature eight-week-old infants developed a culture-proven pertussis at 7 months of age and relapsed at 15 months of age. According to the current immunization recommendations, the infant was vaccinated with DT instead of DTP at 2, 4 and 6 months of age. However, given the current version