Frequency of bacterial strains associated with genitourinary tract infection in a group of infertile Egyptian men

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Identify the most common bacteria infecting the urogenital tract in a group of Egyptian infertile men, and to investigate the response of bacterial isolates to four groups of antibiotics.

Patients and methods

Urine or semen or prostatic discharge samples from 56 infertile Egyptian patients suffering from premature ejaculation, painful urination, or the presence of colored discharge were collected. Identification of isolated bacterial strains was carried out using microscopic examination and biochemical testing. Random amplification of polymorphic DNA (RAPD)-PCR was used as a random fingerprinting technique to compare between Gram-positive isolates, mainly staphylococci.


Staphylococcus spp. was the most common bacteria (30%), followed by Klebsiella (19%) and Escherichia coli (17%). Multidrug resistance was detected in all groups of isolated organisms.


Gentamycin was found to be the most effective antibiotic against Gram-positive and Gram-negative bacteria infecting the genitourinary tract in Egyptians, followed by amikacin. Ciprofloxacin was effective against all Grampositive strains. Staphylococcus hemolyticus was the only Gram-positive strain resistant to levofloxacin. Alcaligenes strains were resistant to all the antibiotics used.

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