Kansenshogaku Zasshi
Online ISSN : 1884-569X
Print ISSN : 0387-5911
ISSN-L : 0387-5911
Epidemiological and Bacteriological Study on Gonococcal Infections
Masahiro NISHIMURAYoshiaki KUMAMOTOTakaoki HIROSEMikio KOROKUMidori HOJOShigeru SAKAITaiji TSUKAMOTOKouichi DEGUCHI
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1992 Volume 66 Issue 6 Pages 743-753

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Abstract

Epidemiological and bacteriological studies on Neisseria gonorrhoeae isolated in Sapporo, Japan, in 1980 and 1991 performed and the following results were obtained.
1. The range of age in the patients infected with Neisseria gonorrhoeae tended to be younger than those in the whole country.
2. Male patients in the early 20s or younger with gonococcal urethritis were often infected by bon-professional females but those in their late 20s or older were often infected from professional females, for example prostitutes and hostesses.
3. The rate of professional females who were positive to gonococci reached 17.4% and young females in their teens with cervicitis had the highest morbidity rate of gonococci than those in the older females.
4. The latent period in gonococcal infections tended to become longer gradually.
5. The isolation rate of penicillinase producing Neisseria gonorrhoeae (PPNG) showed a peak of 23.9%(61/255) in 1985, but gradually declined thereafter and it was 3.7%(1/27) in 1991.
6. An investigation on auxotype showed a decline of proto and Pro- strains and an increase of AHU- strains in non-PPNG. And most of the PPNG belonged to proto or Pro- strains.
7. With the relationship between auxotype and sensitivity to AMPC, AHU- strains were more sensitive than proto or Pro- strains.

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© The Japansese Association for Infectious Diseases
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