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Lack of pneumococcal carriage in the hospitalised elderly

机译：住院老年人缺乏肺炎球菌运输

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摘要

There have been few surveys of Streptococcus pneumoniae and Neisseria meningitidis carriage in sick or frail elderly people who, with the very young, comprise the group who are at highest risk for pneumococcal disease. We studied pneumococcal carriage among participants in a pneumococcal immunisation study in the frail elderly.Methods: Subjects aged >= 60 years were recruited from a large tertiary referral hospital in Sydney, Australia. Nose and throat swabs were collected at the time of enrolment and 12 months after immunisation. Results: Before immunisation, only 1 of 315 participants was identified as a nasal carrier of S. pneumoniae; another was identified as throat carrier of N. meningitidis. None of the participants examined after immunisation was carrying either S. pneumoniae or N. meningitidis.Conclusion: The low rate of pneumococcal carriage in this population of hospitalised elderly patients was unexpected. The most likely reason is that long-term carriage is rare in this population and suggests that pneumococcal disease primarily follows recent acquisition of S. pneumoniae types not associated with carriage.
机译：几乎没有针对患病或体弱的老年人的肺炎链球菌和脑膜炎奈瑟氏球菌的携带情况的调查，这些人口在很小的时候就属于肺炎球菌疾病风险最高的人群。我们在体弱的老年人中进行了肺炎球菌免疫研究，在参与者中研究了肺炎球菌的运输。方法：年龄≥60岁的受试者来自澳大利亚悉尼的一家大型转诊医院。入组时和免疫后12个月收集鼻和咽拭子。结果：免疫前，在315名参与者中只有1名被确定为肺炎链球菌的鼻携带者。另一种被确定为脑膜炎奈瑟氏球菌的咽喉携带者。免疫后接受检查的参与者均未携带肺炎链球菌或脑膜炎奈瑟氏菌。结论：这例住院老年患者的肺炎球菌携带率低是出乎意料的。最可能的原因是长期携带在该人群中很少，这表明肺炎球菌疾病主要是在最近获得了与携带无关的肺炎链球菌类型之后。

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