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CAMP negative Streptococcus agalactiae

CAMP negative Streptococcus agalactiae - Microbiology Forum

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Old 01-17-2012, 08:18 AM
Pipette Filler
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Default CAMP negative Streptococcus agalactiae



Hi, I am working on mastitis bacterial isolates for my thesis here in the Philippines. I have Streptococcus agalactiae isolates identified by BBL crystals with negative results from CAMP test. Is it possible that S. agalactiae can have such result? Do you have any references that will support such results? Please help me.
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Old 01-20-2012, 02:29 AM
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Default Re: CAMP negative Streptococcus agalactiae

You must understand that for any biochemical test, a positive result happens to 80-100% of a positive strain. That is, if the beta-hemolytic streptococcus should be positive for hemolysis, only 80-100% of the streptococcus strains will have that result. So yes, it is possible for S. agalactiae to have a negative CAMP test result.

As long as you show that it is comparable to a standard strain (e.g. an ATCC strain), you should be fine.
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agalactiae , camp , negative , streptococcus


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