[Spermatozoal immobilization ability and virulence genes of Staphylococcus aureus isolated from the semen of infertile men].

Objective: To investigate the impact of Staphylococcus aureus from infertile men on sperm motility and the relationship between virulence genes and the activity of spermatozoal immobilization.

Methods: We collected 60 strains of non-repeated Staphylococcus aureus from the semen of 589 infertile males and analyzed the influence of Staphylococcus aureus on sperm motility using the computer-aided sperm analysis system. We selected the strains that apparently decreased sperm motility and detected their virulence genes by PCR.