Auxotyping of Neisseria gonorrhoeae as an additional epidemiological marker.
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1992-09-01
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Auxotypes and penicillin sensitivity of 102 strains of N. gonorrhoeae were studied. Ten distinct auxotypes on the basis of growth requirement to seven amino acids were observed. The commonest pattern seen was zero auxotype (33.3%), followed by auxotype requiring proline (18.6%). MIC of 72 (71.5%) strains ranged from < 0.003 IU/ml to 0.062 IU/ml of benzyl penicillin. MIC of the other 30 (29.5%) strains was found to be > or = 0.125 IU/ml, indicating penicillin resistance. None of the strains were penicillinase producers. A case of reinfection was also detected on the basis of change in auxotype pattern.
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Agarwal SK, Deb M, Prakash K, Sharma AK. Auxotyping of Neisseria gonorrhoeae as an additional epidemiological marker. Indian Journal of Medical Research. 1992 Sep; 95(): 227-9