The listeriosis-linked deaths have occurred in Colorado (6), Indiana (1), Kansas (2), Louisiana (2), Maryland (1), Missouri (1), Nebraska (1), New Mexico (5), New York (2), Oklahoma (1), Texas (2) and Wyoming (1). The people who have died ranged in age from 48 to 96, the CDC said.
One pregnant woman who contracted the illness had a miscarriage, the CDC said.
Pennsylvania has reported its first case of infection, the agency said Tuesday.
On Sept. 14, the agency announced that Jensen Farms had voluntarily recalled its Rocky Ford-brand cantaloupes and the produce was "now off store shelves." Consumers -- especially older adults, people with weakened immune systems and pregnant women -- should discard this brand of cantaloupe if it is in their refrigerator, the agency said. Other brands of cantaloupe are safe to consume, however.
At a recent news conference, CDC Director Dr. Thomas R. Frieden called the cantaloupe-linked outbreak "the deadliest outbreak of a foodborne disease that we've identified in more than a decade."
Unlike other bacteria, listeria can flourish in colder temperatures. So, "if you've got a contaminated cantaloupe in your refrigerator, the listeria will continue to grow," Frieden said. "That's one of the reasons why we may see continued cases from cantaloupe already in people's refrigerators in the days and weeks ahead."
Although listeria tends to infect fewer people, it is typically deadlier than other foodborne germs and disproportionately affects the elderly, newborns, pregnant women and anyone with a weakened immune system. People can develop meningitis from the organism, but many people only experience milder diarrhea.
According to the CDC, some 1,600 cases a
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