Hi,

Chk these links out :

General :

http://www.rapidmicrobiology.com/test-methods/Salmonella.php

Commercially available methods :

http://www.rapidmicrobiology.com/test-methods/keyword-display.php?id=7&ti=Salmonella%20Detection%20and%20Identification%20Methods&f=Salmonella

16S rDNA is the most commonly used method .

However invA gene is also used.

U might also read these articles:

http://www.ncbi.nlm.nih.gov/pubmed/12430773

http://www.ncbi.nlm.nih.gov/pubmed/3134224

Invj

Thanks :)