期刊
TRENDS IN MICROBIOLOGY
卷 10, 期 8, 页码 376-382出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0966-842X(02)02402-2
关键词
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Neisseria meningitidis is a commensal bacterium of the human nasopharynx that occasionally provokes invasive disease. Carriage strains of N. meningitidis are heterogeneous, more frequent in nature and are transmitted among carriers. Disease is not a part of this transmission cycle and is caused by virulent strains. N. meningitidis is highly variable and variants that are modified in their virulence and/or transmissibility are continually generated. These events probably occur frequently, thus explaining not only the heterogeneous nature of meningococcal populations in carriers but probably also the evolutionary success of this human-restricted bacterium.
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