Case Count Maps
Multistate Outbreak of Listeriosis Linked to Imported Frescolina Marte Brand Ricotta Salata Cheese (Final Update)
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Posted November 21, 2012 2:30 PM ET
This investigation is closed.Listeria monocytogenes infection (listeriosis) is an important cause of illness in the United States. More information about listeriosis, and steps people can take to reduce their risk of infection, can be found on the CDC Listeria Web Page.
Current Case Count Map
Persons infected with the outbreak-associated strain of Listeria monocytogenes, by state*
n= 22 for whom information was reported as of November 14, 2012
A total of 22 persons infected with the outbreak-associated strain of Listeria monocytogenes were reported from 13 states and the District of Columbia. The number of ill persons identified in each state was as follows: California (3), Colorado (1), District of Columbia (1), Maryland (3), Massachusetts (1), Minnesota (1), Nebraska (1), New Jersey (3), New Mexico (1), New York (1), Ohio (1), Pennsylvania (2), Virginia (2), and Washington (1).
October 25, 2012
Persons infected with the outbreak-associated strain of Listeria monocytogenes, by state*
n= 22 for whom information was reported as of October 25, 2012
A total of 22 persons infected with the outbreak-associated strain of Listeria monocytogenes have been reported from 13 states and the District of Columbia. The number of ill persons identified in each state is as follows: California (3), Colorado (1), District of Columbia (1), Maryland (3), Massachusetts (1), Minnesota (1), Nebraska (1), New Jersey (3), New Mexico (1), New York (1), Ohio (1), Pennsylvania (2), Virginia (2), and Washington (1).
October 11, 2012
Persons infected with the outbreak-associated strain of Listeria monocytogenes, by state*
*n= 20 for whom information was reported as of October 11, 2012
A total of 20 persons infected with the outbreak-associated strain of Listeria monocytogenes have been reported from 12 states and the District of Columbia. The number of ill persons identified in each state is as follows: California (3), Colorado (1), District of Columbia (1), Maryland (3), Minnesota (1), Nebraska (1), New Jersey (3), New Mexico (1), New York (1), Ohio (1), Pennsylvania (2), Virginia (1), and Washington (1).
September 26, 2012
Persons infected with the outbreak-associated strain of Listeria monocytogenes, by state*
*n=18 for whom information was reported as of September 26, 2012
A total of 18 persons infected with the outbreak-associated strain of Listeria monocytogenes have been reported from 12 states and the District of Columbia. The number of ill persons identified in each state is as follows: California (1), Colorado (1), District of Columbia (1), Maryland (3), Minnesota (1), Nebraska (1), New Jersey (3), New Mexico (1), New York (1), Ohio (1), Pennsylvania (2), Virginia (1), and Washington (1).
September 20, 2012
Persons infected with the outbreak-associated strain of Listeria monocytogenes, by state*
*n=15 for whom information was reported as of September 20, 2012
A total of 15 persons infected with the outbreak strain of Listeria monocytogenes have been reported from 12 states and the District of Columbia. The number of ill persons identified in each state is as follows: California (1), Colorado (1), District of Columbia (1), Maryland (3), Minnesota (1), Nebraska (1), New Jersey (1), New Mexico (1), New York (1), Ohio (1), Pennsylvania (1), Virginia (1), and Washington (1).
September 11, 2012
Persons infected with the outbreak-associated strain of Listeria monocytogenes, by state*
*n=14 for whom information was reported as of September 11, 2012
A total of 14 persons infected with the outbreak strain of Listeria monocytogenes have been reported from 11 states and the District of Columbia. The number of ill persons identified in each state is as follows: California (1), Colorado (1), District of Columbia (1), Maryland (3), Minnesota (1), Nebraska (1), New Jersey (1), New Mexico (1), New York (1), Ohio (1), Pennsylvania (1), and Virginia (1).
- Page last reviewed: September 11, 2012
- Page last updated: November 21, 2012
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