Johns Hopkins HIV Guide
Neisseria meningitidis
MICROBIOLOGY
- Aerobic, Gram-negative diplococcus
- Member of the Neisseriaceae family, the organism has catalase and oxidase activity.
- It grows in blood, chocolate agar, or selective media, e.g., Thayer Martin, Martin-Lewis, or NY City culture media.
- Capsule presents 13 different serogroups: most important are A, B, C, 29E, H, I, J, K, L, W135, X, Y, Z, and non-typeable (non-encapsulated) serogroups A, B, C, W, and Y are most common.
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Last updated: January 14, 2024
Citation
Auwaerter, Paul G. "Neisseria Meningitidis." Johns Hopkins HIV Guide, The Johns Hopkins University, 2024. Johns Hopkins Guides, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545256/all/Neisseria_meningitidis.
Auwaerter PG. Neisseria meningitidis. Johns Hopkins HIV Guide. The Johns Hopkins University; 2024. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545256/all/Neisseria_meningitidis. Accessed October 29, 2025.
Auwaerter, P. G. (2024). Neisseria meningitidis. In Johns Hopkins HIV Guide. The Johns Hopkins University. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545256/all/Neisseria_meningitidis
Auwaerter PG. Neisseria Meningitidis [Internet]. In: Johns Hopkins HIV Guide. The Johns Hopkins University; 2024. [cited 2025 October 29]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545256/all/Neisseria_meningitidis.
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