Campylobacter detection medium now available
A culture medium has been developed to distinguish
quicker between Campylobacter species, and is now being distributed,
announces the USDA's ARS.
, the new culture medium, is specifically developed to detect
and differentiate C. jejuni and C. coli, which are two major causes of food
The medium was developed in 1987 by ARS microbiologist Norman Stern, who
was working at the ARS Poultry Microbiological Safety Research Unit (PMSRU) in
Athens, Ga. He went to Poland to work with researchers Boleslaw Wojton and Kris
Kwiatek at the Veterinary Research Institute in Pulawy, Poland. Together, they
worked to characterise Campylobacter contamination in poultry.
At that time, detection of Campylobacter relied on the use of new
antibiotics that were unavailable in Poland. In developing the new medium, Stern
used cycloheximide and cefoperazone, which were the only two he had brought to
Poland. Howeber, these two compounds provided superior efficacy, for both
growing Campylobacter in a culture and for repressing the growth of most other
microorganisms. Consequently, it was determined by he researchers that the
additional antibiotics previously employed with other Campylobacter media were
In 1999, the Campy-Cefex culture medium was patented
. Licensing agreements
to produce the new culture medium have since been entered into with Becton
Dickinson and Company, Franklin Lakes, N.J., and Neogen Corporation, Lansing,
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