The use of cephalothin and triphenyltetrazolium chloride impregnated filter paper strips in the identification of Campylobacter species.
Filter paper impregnated strips using cephalothin at 30 and 60 micrograms/ml and triphenyltetrazolium chloride at 20 mg/ml were prepared and used in the typing of catalase-positive Campylobacter species. There was no difference in the sensitivity of campylobacters to cephalothin at 30 micrograms/ml and 60 micrograms/ml. Results were as reported by other workers except for a C. jejuni strain which was resistant to the triphenyltetrazolium. The technique is nevertheless inexpensive and the results are consistent and easy to interpret.
Pefanis
S M
SM
Veterinary Research Institute, Onderstepoort.
Venter
C G
CG
Herr
S
S
D000818:Animals; D002167:Campylobacter / Q000302:isolation & purification*; D002168:Campylobacter fetus / Q000302:isolation & purification*; D002512:Cephalothin; D008722:Methods; D008826:Microbial Sensitivity Tests; D011934:Reagent Strips; D013778:Tetrazolium Salts
D011934:Reagent Strips; D013778:Tetrazolium Salts; C009591:triphenyltetrazolium; D002512:Cephalothin