From eggs to Honey Smacks and pre-cut melon, the food products recalled during the past few weeks could make shoppers queasy with worry about whether what they've just picked up from the grocery store is riddled with potentially harmful pathogens.

This year, salmonella has been the headliner, with the Centers for Disease Control and Prevention reporting eight food-related outbreaks since January. (Remember raw sprouts, frozen shredded coconut and chicken salad?)

On Tuesday, the CDC reported 70 cases of salmonella infections in seven states tied to pre-cut melons, with 34 hospitalizations. The recent spate of outbreaks of food-borne illnesses raises food-safety questions. Here's a primer on what you need to know.

— By Corilyn Shropshire, Chicago Tribune

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