Japanese Journal of Infectious Diseases
Online ISSN : 1884-2836
Print ISSN : 1344-6304
ISSN-L : 1344-6304
Carriage Rate and Characteristics of Neisseria meningitidis Among Dormitory Students
Atsuhiro KanayamaTeppei SasaharaHideyuki TakahashiHajime KamiyaYuji MorisawaKoki Kaku
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ジャーナル フリー 早期公開

論文ID: JJID.2020.890

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In Japan, several meningococcal disease outbreaks have recently been reported among adolescent dormitory residents of schools. However, little is known about meningococcal carriage dynamics among healthy individuals. The purpose of this study was to investigate the carriage rate over time and characteristics of Neisseria meningitidis strains among dormitory students. The survey was conducted twice between November 2018 and January 2019 for first to third year students (N=376) in a medical school dormitory. The two surveys yielded carriage rates of 0.4% (one positive among 257 students) and 2.1% (two positive among 97 students, including 90 re-participants), respectively. No transmission or persistence of a specific strain was found during the two months. A limited number of students had a history of potential risk behaviors for carriage, such as smoking (3.0%, six among 202 aged ≥ 20 years; 5.2%, four among 77 aged ≥ 20 years) and attending parties more than once a week (4.3% [11/257], 2.1% [2/97]). Two isolates were unencapsulated, consistent with the participants being asymptomatic.

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