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- Gram-negative diplococcus, appears identical to N. gonorrhoeae.
- Previously known as Branhamella
- May occasionally be misidentified in the lab as N. cinerea, N. flavescens, or as a glucose-negative strain of N. gonorrhoeae.
- Grows easily on blood chocolate agar, 28º C.
- Colonizes upper airways in 5-15% of population, found only in humans.
- Most frequently found as part of normal flora for infants and children, decreases in adults.
- Commonly produces beta-lactamase, 95% of strains resistant to amoxicillin.