Three health Brazilian families were examined for their oral carriage of
Staphylococcus aureus
the most common persistent human pathogen. The mean level of
S.aureus colonization was high 56.2% and 25.9% of the individuals were methicillin-resistant
S. aureus (MRSA) carriers. However, a low level of resistance to eight antimicrobial agents were found, except for penicillin (85.1%), erythromycin (40.7%) and amoxicillin (22.2%).
