I would think that Lancefield grouping trumps a CAMP test for
identification. I have never used the CAMP test. I've always used latex
agglutination. Was the colony hemolytic? There are non-hemolytic Group B
streps. The colony morphology looks similar; it is just not hemolytic.
Judy Dilworth, M.T. (ASCP)
Microbiology
"vincent setiawan" <vincedemagna At yahoo.com> wrote in message
news:mailman.154.1164484058.19683.microbio At net.bio.net...
> Hello, I am working udder healht microbilogy lab for dairy farm, and
> recently i foun some streptococcal collony, I suspect that it was
> Streptococcus agalactiae, since there was an outbrake a year a go, the
> camp was negative, but when i tested it with streptococcal grouping kit
> (oxoid) for group B antigent was positive. Is it possible that
> Streptococcus agalactiae ressults negative in Camp test but possitive in
> Lancefield grouping for B antigen?
