Recently we had a quality control sool specimen that we had to find the pathogen pacteria and also report all other normal flora of it! we found salmonella sp. as real pathogen while it had black colonies on XLD agar and dark point center colonies on EMB agar.on the Blood Agar we had 2 type of colonies one of them was same salmonella other one are gram possitive abit long bacilli which they didn't growth on EMB.what do you think, can they be normal flora??how can we determine them rapidly???
Thanks and Regards.
Which Bacteria can be normal flora of stool during gastroenteritis??
In order to determine what the Gram + rods are, you would have to do some sort of biochemical tests.. The fastest way would be to do a crystal on it, which just has to incubate overnight and you read the results the next day. But for normal flora in a stool sample...that could be anything!
dendrobium
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