Molecular prevalence of eight different sexually transmitted infections in a Lebanese major tertiary care center: impact on public health.

Background: Sexually transmitted diseases (STD) are caused by a variety of pathogens transmitted by sexual activity. Untreated infections can cause major complications with a substantial high cost on health sector. With the development of molecular techniques, STD screening became easier with a high sensitivity and specificity.

Objectives: In Lebanon, official data regarding STD trends are scarce. This study elucidates the STD molecular profile at a tertiary care center, American University of Beirut Medical Center (AUBMC), its distribution among gender and age groups, with a comparison to international studies.

Methods: A retrospective data analysis was conducted on all STD panels performed at AUBMC from January 2017 till December 2019 to determine the molecular prevalence of eight different sexually transmitted organisms.

Results: Our samples belonged to 248 females (41.5%) and 349 males (58.5%). Only 53.5% of the samples tested positive for one or more organisms. Ureaplasma urealyticum/parvum was found to be the most common pathogen (49.3%), followed by Gardenerella vaginalis (33.5%), Chlamydia trachomatis (5.36%), Mycoplasma genitalium (5.16%), Neisseria gonorrhea (2.5%), Herpes simplex virus (2.5%), and Trichomonas vaginalis (1.39%). Age was distributed between 5 and 80 years old. Regarding the pathogen's distribution among gender, Ureaplasma urealyticum/parvum, Herpes simplex virus, and Gardenerella vaginalis were more common in females, the rest was more detected in males.

Conclusion: Data will be of great importance for clinicians, in terms of diagnosis and treatment. It will help adopting an evidence based STI control programs in Lebanon, and it is essential for future larger studies and sexual health awareness programs.