Neisseria lactamica
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| Neisseria lactamica | |
|---|---|
| Scientific classification | |
| Domain: | Bacteria |
| Kingdom: | Pseudomonadati |
| Phylum: | Pseudomonadota |
| Class: | Betaproteobacteria |
| Order: | Neisseriales |
| Family: | Neisseriaceae |
| Genus: | Neisseria |
| Species: | N. lactamica |
| Binomial name | |
| Neisseria lactamica corrig. Hollis et al. 1969 (Approved Lists 1980) | |
Neisseria lactamica is a gram-negative diplococcus bacterium. It is strictly a commensal species of the nasopharynx. Uniquely among the Neisseria they are able to produce β-D-galactosidase and ferment lactose.[1]
This species is most commonly carried by young children. There is an inverse relationship between colonisation by N. lactamica and Neisseria meningitidis.[2] Carriage of N. lactamica has been associated with decreased incidence of invasive meningococcal disease.[3] However, resistance to penicillin and other beta-lactams may be transmitted from commensal neisseriae such as Neisseria lactamica to disease causing Neisseria meningitidis by the process of genetic transformation.[4]