Occurrence of mecA and blaZ genes in methicillin-resistant Staphylococcus aureus associated with vaginitis among pregnant women in Ado-Ekiti, Nigeria.

Methicillin-resistant Staphylococcus aureus (MRSA) is an increasingly prevalent pathogen. We studied the prevalence of MRSA and its association with vaginitis during pregnancy. Bacteriological investigations of high vaginal swabs of 350 healthy pregnant women attending antenatal clinics were carried out. Staphylococci were isolated from high vaginal swabs of 135 of the women. The staphylococcal isolates were resistant to multiple antibiotics. The PCR amplification of DNA of 20 selected isolates yielded six possessing the mecA gene and 13 the blaZ gene. MRSA possessing both the mecA and blaZ genes were isolated from subjects who reported vaginal discharge and itching.