CDC Listeria: Outbreak Updates

December 8, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Thu, 08 Dec 2011 10:14:00 EST

A total of 146 persons infected with any of the four outbreak-associated strains of Listeria monocytogenes were reported to CDC from 28 states.
Thirty deaths were reported. In addition, one woman pregnant at the time of illness had a miscarriage.
Available evidence indicates that this outbreak is over. However, Listeria is still an important cause of human illness in the United States. More information about listeriosis and recommendations to reduce the risk of getting listeriosis from food are available at CDC's Listeriosis webpage.

November 2, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Thu, 03 Nov 2011 08:51:00 EST

As of 9am EDT on November 1, 2011, a total of 139 persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 28 states. Nevada and Utah have reported their first case each since the last CDC update.
Twenty-nine deaths have been reported. In addition, one woman pregnant at the time of illness had a miscarriage.

October 25, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Wed, 26 Oct 2011 13:30:00 EST

As of 9am EDT on October 24, 2011, a total of 133 persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 26 states.
Twenty-eight deaths have been reported. In addition, one woman pregnant at the time of illness had a miscarriage.

October 18, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Tue, 18 Oct 2011 17:59:00 EST

As of 9am EDT on October 17, 2011, a total of 123 persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 26 states. Pennsylvania has reported their first case since the last CDC update.
Twenty-five deaths have been reported. In addition, one woman pregnant at the time of illness had a miscarriage.

October 12, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Wed, 12 Oct 2011 16:15:00 EST

As of 9am EDT on October 11, 2011, a total of 116 persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 25 states. All illnesses started on or after July 31, 2011.
Twenty-three deaths have been reported: 5 in Colorado, 1 in Indiana, 2 in Kansas, 2 in Louisiana, 1 in Maryland, 1 in Missouri, 1 in Nebraska, 5 in New Mexico, 1 in New York, 1 in Oklahoma, 2 in Texas, and 1 in Wyoming. In addition, one woman pregnant at the time of illness had a miscarriage.

October 7, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Fri, 07 Oct 2011 14:15:00 EST

As of 9am EDT on October 6, 2011, a total of 109 persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 23 states. All illnesses started on or after July 31, 2011.
Twenty-one deaths have been reported: 5 in Colorado, 1 in Indiana, 2 in Kansas, 1 in Maryland, 1 in Missouri, 1 in Nebraska, 5 in New Mexico, 1 in New York, 1 in Oklahoma, 2 in Texas, and 1 in Wyoming. In addition, one woman pregnant at the time of illness had a miscarriage.

October 4, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Wed, 05 Oct 2011 08:51:00 EST

As of 11am EDT on October 3, 2011, a total of 100 persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 20 states. All illnesses started on or after July 31, 2011. The number of infected persons identified in each state is as follows: Alabama (1), Arkansas (1) California (1), Colorado (30), Idaho (1), Illinois (1), Indiana (2), Kansas (7), Maryland (1), Missouri (3), Montana (1), Nebraska (6), New Mexico (13), North Dakota (1), Oklahoma (11), Texas (14), Virginia (1), West Virginia (1), Wisconsin (2), and Wyoming (2).
Eighteen deaths have been reported: 5 in Colorado, 2 in Kansas, 1 in Maryland, 1 in Missouri, 1 in Nebraska, 5 in New Mexico, 1 in Oklahoma, and 2 in Texas.

September 30, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Fri, 30 Sep 2011 14:13:00 EST

As of 11am EDT on September 29, 2011, a total of 84 persons infected with any of the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 19 states. All illnesses started on or after July 31, 2011. The number of infected persons identified in each state is as follows: Alabama (1), Arkansas (1) California (1), Colorado (17), Illinois (1), Indiana (2), Kansas (5), Maryland (1), Missouri (3), Montana (1), Nebraska (6), New Mexico (13), North Dakota (1), Oklahoma (11), Texas (14), Virginia (1), West Virginia (1), Wisconsin (2), and Wyoming (2).
Fifteen deaths have been reported: 3 in Colorado, 1 in Kansas, 1 in Maryland, 1 in Missouri, 1 in Nebraska, 5 in New Mexico, 1 in Oklahoma, and 2 in Texas.

September 27, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Tue, 27 Sep 2011 14:54:00 EST

# As of 11am EDT on September 26, 2011, a total of 72 persons infected with the four outbreak-associated strains of Listeria monocytogenes have been reported to CDC from 18 states. All illnesses started on or after July 31, 2011. The number of infected persons identified in each state is as follows: California (1), Colorado (15), Florida (1), Illinois (1), Indiana (2), Kansas (5), Maryland (1), Missouri (1), Montana (1), Nebraska (6), New Mexico (10), North Dakota (1), Oklahoma (8), Texas (14), Virginia (1), West Virginia (1), Wisconsin (2), and Wyoming (1).
Thirteen deaths have been reported: 2 in Colorado, 1 in Kansas, 1 in Maryland, 1 in Missouri, 1 in Nebraska, 4 in New Mexico, 1 in Oklahoma, and 2 in Texas.

September 21, 2011: Multistate Outbreak of Listeriosis Linked to Whole Cantaloupes from Jensen Farms, Colorado

Tue, 20 Sep 2011 14:52:00 EST

# As of 5pm EDT on September 20, 2011, a total of 55 persons infected with the 4 outbreak-associated strains of Listeria monocytogenes have been reported from 14 states. All illnesses started on or after August 4, 2011. The number of infected persons identified in each state is as follows: California (1), Colorado (14), Illinois (1), Indiana (1), Maryland (1), Montana (1), Nebraska (4), New Mexico (10), Oklahoma (8), Texas (9), Virginia (1), West Virginia (1), Wisconsin (2), and Wyoming (1).
Collaborative investigations by local, state, and federal public health and regulatory agencies indicate the source of the outbreak is whole cantaloupe grown at Jensen Farms’ production fields in Granada, Colorado.

September 19, 2011: Multistate Outbreak of Listeriosis Linked to Rocky Ford Cantaloupes from Jensen Farms

Mon, 19 Sep 2011 14:48:00 EST

A total of 35 persons infected with the outbreak-associated strains of Listeria monocytogenes have been reported from 10 states. All illnesses started on or after August 4, 2011. The number of infected persons identified in each state is as follows: California (1), Colorado (12), Illinois (1), Indiana (1), Montana (1), Nebraska (4), New Mexico (5), Oklahoma (6), Texas (3), and West Virginia (1).
Collaborative investigative efforts of state, local, and federal public health and regulatory agencies have linked this outbreak to eating whole cantaloupe from Jensen Farms, of Granada, Colorado.

September 14, 2011: Multistate Outbreak of Listeriosis Linked to Rocky Ford Cantaloupes from Jensen Farms

Thu, 15 Sep 2011 11:08:00 EST

A total of 22 persons infected with the outbreak-associated strains of Listeria monocytogenes have been reported from 7 states. The number of infected persons identified in each state is as follows: Colorado (12), Indiana (1), Nebraska (1), New Mexico (4), Oklahoma (1), Texas (2), and West Virginia (1). Two deaths have been reported, one in Colorado and one in New Mexico.
Collaborative investigative efforts of state, local, and federal public health and regulatory agencies have linked this outbreak to eating whole cantaloupe from Jensen Farms, of Granada, Colorado.

September 13, 2011: Multistate Outbreak of Listeriosis Linked to Rocky Ford Cantaloupes

Tue, 13 Sep 2011 21:19:00 EST

A total of 16 persons infected with the outbreak-associated strains of Listeria monocytogenes have been reported from 5 states. All illnesses started on or after August 15, 2011. The number of infected persons identified in each state is as follows: Colorado (11), Indiana (1), Nebraska (1), Oklahoma (1), and Texas (2).
Epidemiologic, traceback, and laboratory investigations have linked this outbreak to eating cantaloupes marketed as coming from the Rocky Ford region of Colorado.
CDC recommends that persons at high risk for listeriosis, including older adults, persons with weakened immune systems, and pregnant women, do not eat cantaloupes marketed as coming from the Rocky Ford region of Colorado.

September 12, 2011: Multistate Outbreak of Listeriosis Linked to Rocky Ford Cantaloupes

Tue, 13 Sep 2011 00:00:00 EST

CDC is collaborating with public health officials in several states, including Colorado, and the U.S. Food and Drug Administration (FDA) to investigate a multistate outbreak of listeriosis. Listeriosis is a serious infection usually caused by eating food contaminated with the bacterium Listeria monocytogenes.