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So far, this appears to be half about the different serovars within S. enterica subsp. enterica, and half about treating salmonellosis. I propose we move the salmonellosis material to the Salmonellosis page, and expand more on the biology of the bacteria. There is plenty of material on host range and what determines this. There is also some content of the bacteria's status as an emerging pathogen, which I can add in.