An intrepid barblog.com reader e-mailed me two days ago to say she had been shopping at Trader Joe’s and they were pulling pistachios off the shelves. She surmised they were either slow on a previous Salmonella-in-pistachios, or there was a new outbreak.

It was the later.

Trader Joes publicly announced the recall the next day and last night, the U.S. Centers for Disease Control linked the Trader Joe’s pistachios to a national outbreak of Salmonella Montevideo that has so far sickened at least 11 people in nine states.

Local, state and federal health officials are investigating the outbreak. Meanwhile, California-based Wonderful Pistachios has voluntarily recalled a limited number of flavors and sizes of its product, the CDC statement said.

The pistachios were sold nationwide and in Canada under the brand names Wonderful, Paramount Farms and Trader Joe’s.

The recalled products can be identified by their lot number, which can be found at the bottom of packaging. The CDC has a guide on which pistachios were recalled and how to tell on its website. The Food and Drug Administration has a list of the (many) recalled products.