Seven Massachusetts residents joined two from Pennsylvania as the latest victims of a food poisoning outbreak after eating ground beef tainted with E. coli bacteria.

The source of the outbreak was traced to Whole Foods market and beef supplier Coleman Natural Beef, which has been tied to a nationwide recall earlier this summer.

Consumers are being advised not to eat beef purchased at Whole Foods between June 2 and Aug. 6.

Five of the Massachusetts victims were hospitalized but are expected to recover. Victims ranged in age from 3 to 60.

John Guilfoil is the editor-in-chief of Blast: Boston's Online Magazine. He can be reached at guilfoil.j@blastmagazine.com.