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①目的探讨太原市儿童鼻咽部溶血性链球菌（ＨＳ）携带情况及其与空气中ＨＳ含量的关系。②方法鼻、咽部ＨＳ用鼻咽拭子采样、立即接种血平皿，以ｃｆｕ／ｃｍ２计数；空气采样用平板沉降法，以ｃｆｕ／ｍ３计数。③结果鼻部ＨＳ携带率为４０．０％，咽后壁为５１．５％，室内空气ＨＳ含量春、夏、秋、冬分别为１１２．１，２８．０，２７．０，９４．０ｃｆｕ／ｍ３．鼻、咽部ＨＳ携带率及空气中ＨＳ含量冬春两季大于夏秋两季（χ２＝１０．０８，Ｐ＜０．０１；ｑ＝４．９～５．５，Ｐ＜０．０１）。④结论ＨＳ可以作为儿童呼吸系统细菌感染及空气中致病菌污染的指标之一。
(1) Objective To investigate the relationship between the carriage of hemolytic streptococcus (HS) in nasopharynx and HS content in air of children in Taiyuan. Methods nasal and pharyngeal HS nasopharyngeal swab sampling, immediately inoculated blood plate, count cfu / cm2; air sampling by plate sedimentation method to cfu / m3 count. Results The nasal HS carrying rate was 40.0% and the posterior pharyngeal wall was 51.5%. The indoor air HS content was 112.1,28.0,27.0,94.0 cfu in spring, summer, autumn and winter, respectively / M3. The carrying rate of HS in nasal and pharynx and the content of HS in air were greater in winter and spring than in summer and autumn (χ2 = 10.08, P <0.01; q = 4.9-5.5, P <0.01). ④ Conclusion HS can be used as an indicator of bacterial infection in children’s respiratory system and airborne pathogens.