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Journal of Clinical Microbiology, October 2002, p. 3681-3683, Vol. 40, No. 10
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.10.3681-3683.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Improved Detection by DNA Amplification of Trichomonas vaginalis in Males

Jane R. Schwebke* and Lisa F. Lawing

Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, Alabama 35294

Received 28 March 2002/ Returned for modification 7 June 2002/ Accepted 14 July 2002

Trichomoniasis is a sexually transmitted infection that is highly prevalent worldwide and has been linked to preterm birth and human immunodeficiency virus acquisition. In females, trichomoniasis causes vaginitis, while in males, it is frequently asymptomatic but can be a cause of urethritis. Control efforts have been hampered by the lack of a sensitive diagnostic technique for this infection in males. Men attending a sexually transmitted disease (STD) clinic for a new complaint were screened for Trichomonas vaginalis by culture and by PCR analysis of urine and urethral-swab specimens. The prevalence of Trichomonas determined by culture was 5% (15 of 300 specimens), compared to 17% (52 of 300) determined by PCR. Urine specimens yielded a greater number of positive results by PCR than did urethral-swab specimens. The sensitivity of PCR analysis of urine specimens in comparison to that of culture was 100%. The use of PCR techniques in urine specimen-based detection of T. vaginalis was highly sensitive and revealed a prevalence of infection more than three times that revealed by culture for men at high risk for STDs.

* Corresponding author. Mailing address: 703 19th St. South, Zeigler Research Building #239, Birmingham, AL 35294-0007. Phone: (205) 975-5665. Fax: (205) 975-7764. E-mail: Schwebke{at}uab.edu.

Journal of Clinical Microbiology, October 2002, p. 3681-3683, Vol. 40, No. 10
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.10.3681-3683.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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