Prolonged In Vitro Exposure of Staphylococcus aureus to Germicidal Teat Dips

摘要: Eight strains of Staphylococcus aureus were tested to determine if prolonged exposure commercial teat dips could enhance bacterial tolerance in vitro. All S. serially plated 15 times on chemically defined agar medium containing sublethal concentrations linear dodecyl benzene sulfonic acid, chlorhexidine, sodium hypochlorite, and iodophor dips. Growth responses not affected by these Isolates subcultured .1% acid dip subsequently had a greater mean growth response solution the germicide than did controls basal medium. Hemolytic patterns, tube coagulase, clumping factor, protein A reactions altered any tested. In general, alter germicidal susceptibility aureus.