The largest outbreak of foodborne illness in a decade, one that sickened at least 1,440 people, appears to be over.

Industry leaders are questioning whether the weak produce-tracking rules that many of them once championed are more a curse than a blessing, several food safety experts say.

Food poisoning typically spikes this time of year, and mayonnaise always attracts suspicion.

Nine of the 228 people who have gotten sick from salmonella-tainted tomatoes ate at two restaurants in the same chain.

A total of 228 people in 23 states, now including New York, have been reported sickened by salmonella-tainted tomatoes.

McDonald’s, Wal-Mart and other chains have halted sales of some tomatoes as health officials work to trace the source of a salmonella food poisoning outbreak.