With 90% of the U.S. population living within 10 miles of a Walmart store, recalls of products they sell can have widespread effects. Labeling mistakes, safety concerns and contamination can all cause food recalls. Prescriptions and other products can also be recalled.

A canned tuna recall at Costco and other stores over a botulism risk has consumers on alert. Check if your tuna is affected and what to do next.

Trader Joe's, Costco, and Walmart are among the retailers and brands caught up in the massive recall. Botulism is a rare but serious illness.