1.   If there is no improvement, then you should try eliminating all the other suspect foods that you have listed.

2.   Suspect foods were reinvestigated with open and if possible, double blind rechallenge.

3.   Each food was introduced over five days with suspect foods being left until all other reintroductions were complete.

4.   Suspect foods were tried again in an open reintroduction and if symptoms recurred the patient was offered a double blind challenge all of which were done as inpatient studies.

5.   Suspect food was masked in a meal in which all other constituents were known to be safe.

6.   There was only the occasional dramatic response to food exclusion, as shown by the patient with salicylate sensitivity and overall avoidance of suspect foods did not prolong remission.

7.   Americans have invented a clever gadget the size of a personal stereo that can quickly and easily test any suspect food against food-borne bacteria.

8.   Georgia Tech researchers have developed a laser that can instantly detect the presence of E. coli in suspect foods, like ground beef.

9.   Officials said they were aware of the problems and intended to use the PCR tests initially for screening purposes so that suspect foods could undergo more standard tests.

10.   The government also would be given new power to recall suspect food.