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Volume 18, Number 10—October 2012

CME ACTIVITY

Epidemiology of Foodborne Norovirus Outbreaks, United States, 2001–2008

Earning CME Credit

To obtain credit, you should first read the journal article. After reading the article, you should be able to answer the following, related, multiple-choice questions. To complete the questions (with a minimum 70% passing score) and earn continuing medical education (CME) credit, please go to www.medscape.org/journal/eid. Credit cannot be obtained for tests completed on paper, although you may use the worksheet below to keep a record of your answers. You must be a registered user on Medscape.org. If you are not registered on Medscape.org, please click on the New Users: Free Registration link on the left hand side of the website to register. Only one answer is correct for each question. Once you successfully answer all post-test questions you will be able to view and/or print your certificate. For questions regarding the content of this activity, contact the accredited provider, CME@medscape.net. For technical assistance, contact CME@webmd.net. American Medical Association’s Physician’s Recognition Award (AMA PRA) credits are accepted in the US as evidence of participation in CME activities. For further information on this award, please refer to http://www.ama-assn.org/ama/pub/category/2922.html. The AMA has determined that physicians not licensed in the US who participate in this CME activity are eligible for AMA PRA Category 1 Credits™. Through agreements that the AMA has made with agencies in some countries, AMA PRA credit may be acceptable as evidence of participation in CME activities. If you are not licensed in the US, please complete the questions online, print the certificate and present it to your national medical association for review.

Article Title: Epidemiology of Foodborne Norovirus Outbreaks, United States, 2001–2008

CME Questions

1. You are an infectious disease expert consulting to a US public health office regarding prevention and reducing the impact of norovirus outbreaks. Based on the study by Dr. Hall and colleagues, which of the following statements about general characteristics and outcomes of US foodborne norovirus outbreaks during 2001-2008 is most likely to appear in your report?

A. On average, about 1 norovirus outbreak occurred every week

B. The increasing trend that began in the 1990s in the number of reported foodborne norovirus outbreaks continued through 2008

C. Norovirus outbreaks have been linked to an estimated average number of 10,324 illnesses, 1,247 healthcare provider visits, and 156 hospitalizations each year

D. No deaths have been attributed to norovirus

2. Based on the study by Dr. Hall and colleagues, which of the following statements about sources of US norovirus outbreaks is most likely correct?

A. Ground meat was often implicated

B. The most common single source was shellfish

C. Most foods were likely contaminated during production and processing

D. Contact with food handlers during preparation was cited in 82% of outbreaks as a possible contributor to contamination

3. Based on the study by Dr. Hall and colleagues, which of the following statements about recommended interventions to reduce the frequency and impacts of foodborne norovirus outbreaks would most likely be correct?

A. Food shipping plants are the best target for intervention

B. Food handlers preparing ready-to-eat foods should adhere to hand washing and gloving recommendations and to ill worker exclusion policies

C. A certified kitchen manager is unnecessary in most delis and restaurants

D. Analytic methods to detect norovirus in foods are well established

Activity Evaluation

1. The activity supported the learning objectives.

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2. The material was organized clearly for learning to occur.

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3. The content learned from this activity will impact my practice.

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4. The activity was presented objectively and free of commercial bias.

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