Selective Media for Isolation of Common Bacteria
Organism | Preferred Medium |
|---|---|
Bacteroides species | Kanamycin-vancomycin laked blood agar |
Bacteroides fragilis | Bacteroides bile-esculin (with gentamicin and bile) |
Bordet-Gengou agar plus methicillin or cephalexin Regan-Lowe cephalexin agar | |
Burkholderia cepacia agar | |
Campylobacter jejuni or C. coli | Campylobacter-selective agars (eg, cefoperazone-vancomycin agar) |
Tinsdale agar Cystine-tellurite blood agar Löffler coagulated serum medium | |
Escherichia coli or enterohemorrhagic pathogens (Shiga toxin producers, including O157-H7) | |
Blood- or chocolate-cystine agar | |
Legionella species | |
Leptospira species | Fletcher or Stuart medium with rabbit serum or Leptospira |
Modified Thayer-Martin agar New York City agar | |
Salmonella and Shigella species | May grow on standard MacConkey or eosin-methylene blue Alternative: Hektoen or xylose-lysine-desoxycholate, Salmonella-Shigella agar, gram-negative or selenite enrichment broth |
Vibrio species | Thiosulfate-citrate-bile salts–sucrose agar |
Yersinia species | Cefsulodin-Irgasan-novobiocin agar |