The Associated Press is reporting today that the FDA says that there have been 943 reported cases of Salmonella Saintpaul, up from a total of 922 cases on Wednesday and 869 last week.  The AP cites CDC spokesman Glen Nowak as saying:

The agency’s scientists are working around the clock to try to pinpoint the source of the outbreak but are not ready to single out anything. Salsa ingredients,
including peppers, are among the items being tested, Nowak said. "We don’t rank the items we’re looking at."