BD TaxoT ONPG Discs For detecting lactose fermenters, ONPG (

Intended Use: Taxo™ A discs are for the presumptive identification of group A beta-hemolytic streptococci based on susceptibility to a low level of bacitracin. Discs are intended for use with pure cultures, with the exception noted under "Specimens." Taxo™ P Discs are recommended for use in the presumptive identification of pneumococci, and are intended for use with pure cultures. Taxo™ Strips impregnated with X, V and X and V factors are used in a qualitative procedure for the isolation and differentiation of Haemophilus species. The growth of these organisms is partially dependent upon the presence of the X or V factor or both.1 These strips provide a simple method for determining the growth requirements of organisms in this group. Taxo X and V Factor Strips may be substituted for the Staphylococcus streak used in some laboratories for isolation of Haemophilus when the base medium is Trypticase™ Soy Agar with or without sheep blood. Taxo™ ONPG Discs are used for the detection of lactose fermenters, especially those that do not promptly ferment lactose in some routine identification media such as Triple Sugar Iron Agar (TSI Agar) or Kligler Iron Agar.