RESUMEN
The incidence of Moraxella nonliquefaciens an M. liquefaciens in the urogenital tract is relatively low. These microorganisms were detected in 0.77% of cases during the examination of a total of 3 761 women. M. nonliquefaciens was found in 26 out of 29 cases. The frequency of occurrence did not differ in the groups of healthy women, of women with inflammatory signs in the urogenital tract and of women with confirmed gonorrhoea. We therefore believe that these moraxellae do not play any pathogenetic role in this localization. In our opinion, the similarity of microscopic preparations and the shape of the colonies of these moraxellae with those of Neisseria gonorrhoeae is noteworthy: unless glucose splitting test is carried out, the two species can frequently be confused. The test of sensitivity to antibiotics revealed a considerable decrease in sensitivity to penicillin G as compared with the report of Bövre and Henricksen (1967). Sensitivity to other antibiotics remained unchanged.