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Dynamic pharyngeal carriage of Neisseria species in healthy population

Shan, Xiaoying, Chen, Shuang, Bai, Aiying, Shi, Yuwen, Song, Xuanli, Yin, Xiaoyu, Duan, Chunhong, Tang, Jinglei, Xia, Xian, Liu, Lanzheng, Zhu, Bingqing·2024·Infection, Genetics and Evolution
DOI 10.1016/j.meegid.2024.105684
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Abstract

Considering the significant role of commensal Neisseria carried in the pharynx on the variation of N.meningitidis and the acquisition of its resistance genes, understanding the true Neisseria population colonizing the human pharynx is of great significance. In this study, we carried out a five-month continuous survey of oropharyngeal carriage in a certain healthy population to reveal the long-term carriage status of different Neisseria species. Totally, 419 Neisseria strains were isolated from 203 out of 205 pharyngeal swabs of 49 participants. Using combined methods (MALDI-TOF-MS, rplF sequencing and genome sequencing), the isolates were identified as N.subflava (n = 290), N.mucosa (n = 52), N.oralis (n = 8), N.elongata group (n = 6) and non-species-confirmed (n = 63). N.subflava was isolated from all individuals and 168 swabs (81.95 %). N.mucosa, N.oralis, N.elongata and non-species-confirmed were isolated from 25 (45), 6 (7), 4 (5) and 20 (53) individuals (swabs) respectively. It was common that multiple Neisseria spp. or multiple clones of one species were isolated from a single sample. An identical strain could be isolated frequently from a single person within five months. These results indicate that Neisseria spp. and N.subflava are ubiquitous in human pharynx and both have diverse population; we should pay more attention to them when studying N.meningitidis or other respiratory pathogens; robust and handy method for identifying Neisseria species remains to be develope…

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Metadata

Authors
Shan, X., Chen, S., Bai, A., Shi, Y., Song, X., Yin, X., Duan, C., Tang, J., Xia, X., Liu, L., & Zhu, B.
Venue
Infection, Genetics and Evolution
Publisher
Elsevier BV
Published
2024-11
Volume
125
Pages
105684
ISSN
1567-1348
DOI
10.1016/j.meegid.2024.105684
Cited by
6
References
0
Language
en
Licence
Funders
  • Hubei University of Technology Hubei Provincial Key Laboratory of Green Materials for Light Industry
  • Hebei Provincial Key Research Projects

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