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1.
Clin Infect Dis ; 42(1): 29-36, 2006 Jan 01.
Article in English | MEDLINE | ID: mdl-16323088

ABSTRACT

BACKGROUND: Listeriosis, a life-threatening foodborne illness caused by Listeria monocytogenes, affects approximately 2500 Americans annually. Between July and October 2002, an uncommon strain of L. monocytogenes caused an outbreak of listeriosis in 9 states. METHODS: We conducted case finding, a case-control study, and traceback and microbiological investigations to determine the extent and source of the outbreak and to propose control measures. Case patients were infected with the outbreak strain of L. monocytogenes between July and November 2002 in 9 states, and control patients were infected with different L. monocytogenes strains. Outcome measures included food exposure associated with outbreak strain infection and source of the implicated food. RESULTS: Fifty-four case patients were identified; 8 died, and 3 pregnant women had fetal deaths. The case-control study included 38 case patients and 53 control patients. Case patients consumed turkey deli meat much more frequently than did control patients (P = .008, by Wilcoxon rank-sum test). In the 4 weeks before illness, 55% of case patients had eaten deli turkey breast more than 1-2 times, compared with 28% of control patients (odds ratio, 4.5; 95% confidence interval, 1.3-17.1). Investigation of turkey deli meat eaten by case patients led to several turkey processing plants. The outbreak strain was found in the environment of 1 processing plant and in turkey products from a second. Together, the processing plants recalled > 30 million pounds of products. Following the outbreak, the US Department of Agriculture's Food Safety and Inspection Service issued new regulations outlining a L. monocytogenes control and testing program for ready-to-eat meat and poultry processing plants. CONCLUSIONS: Turkey deli meat was the source of a large multistate outbreak of listeriosis. Investigation of this outbreak helped guide policy changes designed to prevent future L. monocytogenes contamination of ready-to-eat meat and poultry products.


Subject(s)
Disease Outbreaks , Food Microbiology/legislation & jurisprudence , Listeria monocytogenes/isolation & purification , Listeriosis/epidemiology , Listeriosis/microbiology , Meat/microbiology , Adolescent , Adult , Animals , Case-Control Studies , Child , Child, Preschool , Female , Humans , Infant , Male , Middle Aged , Turkeys , United States/epidemiology
2.
Emerg Infect Dis ; 9(2): 184-8, 2003 Feb.
Article in English | MEDLINE | ID: mdl-12603988

ABSTRACT

In the United States, most reported cases of babesiosis have been caused by Babesia microti and acquired in the northeast. Although three cases of babesiosis acquired in New Jersey were recently described by others, babesiosis has not been widely known to be endemic in New Jersey. We describe a case of babesiosis acquired in New Jersey in 1999 in an otherwise healthy 53-year-old woman who developed life-threatening disease. We also provide composite data on 40 cases of babesiosis acquired from 1993 through 2001 in New Jersey. The 40 cases include the one we describe, the three cases previously described, and 36 other cases reported to public health agencies. The 40 cases were acquired in eight (38.1%) of the 21 counties in the state. Babesiosis, a potentially serious zoonosis, is endemic in New Jersey and should be considered in the differential diagnosis of patients with fever and hemolytic anemia, particularly in the spring, summer, and early fall.


Subject(s)
Babesiosis/epidemiology , Endemic Diseases , Animals , Babesia/isolation & purification , Babesiosis/parasitology , Communicable Diseases, Emerging/epidemiology , Endemic Diseases/statistics & numerical data , Female , Humans , Ixodes/parasitology , Middle Aged , New Jersey/epidemiology , Tick Infestations/transmission
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