Money Salmonella outbreak linked to onions: Throw away onions if you don’t know where they’re from, CDC says October 20, 2021October 21, 2021 Kelly Tyko, USA TODAY Comments Off on Salmonella outbreak linked to onions: Throw away onions if you don’t know where they’re from, CDC says The Centers for Disease Control and Prevention has linked fresh whole onions to a growing and mysterious salmonella outbreak with cases in 37 states.