Case cohort study outbreak tour

Title: Passenger behaviors during norovirus outbreaks on ...

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Ship C was sailing on an 11-day tour of the Mexican ports along the Baja Peninsula with 1,904 passengers and 840 crew. Surveys were distributed to all passengers, and a case-cohort study was performed on the returned surveys. A power calculation was used to determine the number of

Title: Passenger behaviors during norovirus outbreaks on ...

Institutional risk factors for norovirus outbreaks in Hong ...

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Institutional risk factors for norovirus outbreaks in Hong Kong elderly homes: a retrospective cohort study. ... that larger elderly homes had higher risk of norovirus outbreaks was consistent with the findings of one prospective cohort study in England and one case-cohort study in New York ...

Institutional risk factors for norovirus outbreaks in Hong ...

Investigating an outbreak of staphylococcal food poisoning ...

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5/4/2015 · Investigating an outbreak of staphylococcal food poisoning among travellers across two Australian states. ... A retrospective cohort study was conducted among a group of tourists who were hospitalized in Sydney shortly after flying from Queensland. ... A case was defined as any member of the tour who travelled from the Gold Coast and ...

Investigating an outbreak of staphylococcal food poisoning ...

7.2.2 - Case-Crossover Study Design | STAT 507

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Each case serves as its own control, i.e the study is self-matched. For each person, there is a 'case window', the period of time during which the person was a case, and a 'control window', a period time associated with not being a case. Risk exposure during the case window is compared to risk exposure during the control window.

7.2.2 - Case-Crossover Study Design | STAT 507

Passenger Behaviors During Norovirus Outbreaks on Cruise ...

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5/20/2008 · All returned surveys were analyzed as a case‐control study. Ship C was sailing on an 11‐day tour of the Mexican ports along the Baja Peninsula with 1,904 passengers and 840 crew. Surveys were distributed to all passengers, and a case‐cohort study was performed on the returned surveys.

Passenger Behaviors During Norovirus Outbreaks on Cruise ...

Disease Transmission and Passenger Behaviors during a High ...

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5/1/2011 · Despite early detection of the outbreak by medical staff and the implementation of aggressive sanitation, infection-control policies, and educational campaigns, this outbreak still resulted in a high attack rate of 15%. However, only 60% of the case passengers identified through the cohort study had reported to the infirmary.

Disease Transmission and Passenger Behaviors during a High ...

Outbreak report - eurosurveillance.org

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the outbreak, identifying the source and implementing control measures..FUIPET 7E CARRIED OUT A RETROSPECTIVE COHORT STUDY ! CASE WAS DElNED AS a person who: (1) participated in the bus tour organised by company ! FROM +IRKENES TO -URMANSK AND BACK FROM !UGUST AND had diarrhoea and/or abdominal cramps (i.e. loose stools or bowel

Outbreak report - eurosurveillance.org

Block 9 Epidemiology Part 2 MCQ's - ProProfs Quiz

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11/6/2018 · Epidemiology is the study of the distribution and determinants of health-related states or events or diseases, and the application of this study to the control of diseases and other health problems. Take the Block 9 Epidemiology part 2 MCQ's below and refresh your memory on the chapter. All the best and keep revising.

Block 9 Epidemiology Part 2 MCQ's - ProProfs Quiz

Transmission of pandemic A/H1N1 2009 influenza on ...

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5/21/2010 · This study was a retrospective cohort investigation of the risk of transmission of influenza during a commercial airline flight. The cohort consisted of all passengers seated in the rear section of the aircraft, with a further susceptible subset identified on the …

Transmission of pandemic A/H1N1 2009 influenza on ...

Critical appraisal of a retrospective cohort study ...

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This chapter presents an example of the application of the scheme for critical appraisal: a retrospective cohort study entitled ‘Cancer mortality in workers exposed to chlorophenoxy herbicides and chlorophenols’, published in The Lancet in 1991. Assessed on its own, this study has produced results which are consistent with causality, but are not convincing, as other explanations cannot be ...

Critical appraisal of a retrospective cohort study ...

(PDF) International flight-related transmission of ...

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International flight-related transmission of pandemic influenza A(H1N1)pdm09: An historical cohort study of the first identified cases in the United Kingdom ... ***Data unavailable as case not in ...

(PDF) International flight-related transmission of ...

Investigating an outbreak of staphylococcal food poisoning ...

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Exposure to chemical and physical agents in the environment can produce a wide range of adverse health consequences. Environmental epidemiology attempts to determine whether a hazard exists—that is, whether there is a causal relation between exposure to certain chemical or physical agents and ...

Investigating an outbreak of staphylococcal food poisoning ...

3 Exposure Assessment in Environmental Epidemiology ...

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A retrospective cohort study was conducted in 13 classes that had secondary cases of rubella. ... of the primary case's 30 fellow tour group members developed disease, compared with none of her 87 ...

3 Exposure Assessment in Environmental Epidemiology ...

Epidemiology - encyclopedia article - Citizendium

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A study can be observational and controlled - if we just mean "people who didn't have the exposure/treatment/whatever" than the bulk of most cohort studies are controls. Case-control studies have "controls", but this means non-cases. In a study I've run, "control" meant "This hospital didn't have a particular policy in place".

Epidemiology - encyclopedia article - Citizendium

Huilai Ma - ResearchGate

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Start studying Science Olympiad Disease Detectives. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. ... Establish the existence of an outbreak, 3. Verify the diagnosis, 4. Define and identify the cases, 5. ... Case-cohort study.

Huilai Ma - ResearchGate

Are studies in epidemiology all observational?

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Epidemiological Studies - authorSTREAM Presentation. Advantages and Limitations: Akhilesh Bhargava 5 Advantages and Limitations Inexpensive in terms of Time & Money Routinely available information can be used Exposure cannot be linked with disease as whole population is represented.

Are studies in epidemiology all observational?

Science Olympiad Disease Detectives Flashcards | Quizlet

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Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site …

Science Olympiad Disease Detectives Flashcards | Quizlet

Epidemiological Studies |authorSTREAM

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This chapter presents a retrospective cohort study of workers from 10 countries exposed to chlorophenoxy herbicides, assessing cancer mortality. It shows the need for large collaborative international studies, and the methods used. The results are not clearly supported by toxicological and animal experimental evidence, and the question remains open.

Epidemiological Studies |authorSTREAM

Newest 'epidemiology' Questions - Page 4 - Cross Validated

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samples, and an epidemiological study. Twenty-one cases fi tted the case defi nition for the outbreak. A retrospective cohort study involving four states was conducted, with 213 people interviewed. Coleslaw and cordial were signifi cantly associated with illness, however when the two exposures were adjusted

Newest 'epidemiology' Questions - Page 4 - Cross Validated

Critical appraisal of a retrospective cohort study ...

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Infl uenza is a frequent cause of acute respiratory illness (ARI). In July 2008, we conducted a retrospective cohort study to investigate an infl uenza outbreak occurring in an overland travel group of overseas students. ARI was defi ned as the pres-ence of any respiratory symptom such as cough, rhinorrhoea, sore throat or stuffy nose.

Critical appraisal of a retrospective cohort study ...

A multi-jurisdictional outbreak of hepatitis A related to ...

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5/14/2009 · The case-control method, and to a lesser extent its case-based variants, have become a most important tool in the armamentarium of today's investigator of health problems. This book addresses a number of general and specific questions dealing with the case-control and other case-based methods, including how to design and implement a case-control study that minimizes biases; how to analyze the ...

A multi-jurisdictional outbreak of hepatitis A related to ...

Outbreak of infl uenza in an overseas student travel group ...

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In 2001, an outbreak of acute respiratory disease occurred among persons working at a Native American archeological site at Dinosaur National Monument in northeastern Utah. Epidemiologic and environmental investigations were undertaken to determine the cause of the outbreak. A clinical case was defined by the presence of at least two of the following symptoms: self-reported fever, shortness of ...

Outbreak of infl uenza in an overseas student travel group ...

Case-Control Method: Design and Applications - Oxford ...

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Its objective is to assess the relationship between symptomatic dengue case exposure and peridomestic infection incidence. Methods/Design: A prospective cohort study will be conducted (in Tepalcingo and Axochiapan, in the state of Morelos, Mexico), using the state surveillance system for the detection of …

Case-Control Method: Design and Applications - Oxford ...

Coccidioidomycosis among Workers at an Archeological Site ...

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Syllabus University of Zimbabwe Department of Community Medicine MPH Module 2 – Epidemiology, Demography ... Complete case study : Cohort studies : Case control studies : Measures of association and impact- ... Syllabus University of Zimbabwe Department of Community Medicine MPH Module 2 – Epidemiology, Biostatistics, Demography 2003 .

Coccidioidomycosis among Workers at an Archeological Site ...

A prospective cohort study to evaluate peridomestic ...

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Chapters 11- 20 of Epidemiology, 4th Edition by Gordis. Using the previous example of the study conducted to determine the association between heart disease and smoking, there were 8,000 people in the study, of which 3,000 were smokers.

A prospective cohort study to evaluate peridomestic ...

Syllabus University of Zimbabwe Department of Community ...

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During June 2-8, 2009, an outbreak of influenza A pandemic (H1N1) 2009 occurred among 31 members of a tour group in China. To identify the mode of transmission and risk factors, we conducted a retrospective cohort investigation. The index case-patient was a female tourist from the United States.

Syllabus University of Zimbabwe Department of Community ...

Epi Final Practice Quiz - ProProfs Quiz

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6 Epidemiologic Studies: Background on Multiply Referenced Populations. This chapter presents study-design information on populations of Vietnam veterans, occupational cohorts, and environmentally exposed groups that have been reported on repeatedly, often for many health outcomes, as well as case-control studies that have generated multiple publications relevant to the Veterans and Agent ...

Epi Final Practice Quiz - ProProfs Quiz

Welcome to CDC stacks | Lack of Airborne Transmission ...

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Choose the Right Synonym for case. Noun (1) instance, case, illustration, example, sample, specimen mean something that exhibits distinguishing characteristics in its category. instance applies to any individual person, act, or thing that may be offered to illustrate or explain. an instance of history repeating itself case is used to direct attention to a real or assumed occurrence or ...

Welcome to CDC stacks | Lack of Airborne Transmission ...

6 Epidemiologic Studies: Background on Multiply Referenced ...

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Steps in an Outbreak Investigation • Verify the diagnosis and confirm possible outbreak • Define a case; refine as you learn more o Example “patient with new onset diarrhea after surgery” • Conduct case finding o Make a line list o Characterize by person, place, time • …

6 Epidemiologic Studies: Background on Multiply Referenced ...

Case | Definition of Case by Merriam-Webster

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Use of Oral Cholera Vaccines in an Outbreak in Vietnam: A Case Control Study Dang Duc Anh1, Anna Lena Lopez2¤* , Vu Dinh Thiem1, Shannon L. Grahek2, Tran Nhu Duong1, Jin Kyung Park2, Hye Jung Kwon2, Michael Favorov2, Nguyen Tran Hien1, John D. Clemens2 1 National Institute of Hygiene and Epidemiology (NIHE), Hanoi, Vietnam, 2 International Vaccine Institute (IVI), Seoul, Republic of Korea ...

Case | Definition of Case by Merriam-Webster

Case Studies - Eberly Center - Carnegie Mellon University

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A survey is considered a cross-sectional study. Some epidemiologists may call it a prevalnce study. The survey results provide a 'snapshot' of a population. Surveys are a useful tool for gauging the health of a population or to monitor effectiveness of a preventative intervention or provision of emergency relief.

Case Studies - Eberly Center - Carnegie Mellon University

Outbreak Management and Investigation

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Methods We performed a retrospective cohort study among party guests. A case was defined as pandemic A(H1N1) 2009 infection confirmed by rRT-PCR who developed influenza-like illness between 1 and 5 June 2009. Contact patterns among party guests were evaluated.

Outbreak Management and Investigation

Use of Oral Cholera Vaccines in an Outbreak in Vietnam: A ...

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A retrospective cohort study was conducted using information from lists routinely maintained by the travel company, including the passenger manifest, and organised coach tour lists. Information on air-conditioning (AC) systems was used to assess the possible sources of exposures.

Use of Oral Cholera Vaccines in an Outbreak in Vietnam: A ...

5.1 - Survey Study Design | STAT 507

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Epidemiologic and environmental investigations were undertaken to determine the cause of the outbreak. A clinical case was defined by the presence of at least two of the following symptoms: self-reported fever, shortness of breath, or cough. ... Swelter Shelter is on the main automobile tour through Dinosaur National Monument and is accessed by ...

5.1 - Survey Study Design | STAT 507

Influenza and Other Respiratory Viruses - John Wiley & Sons

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Foodborne Disease Outbreak Investigation.docx. The author overall used a retrospective cohort study ... The author overall used a retrospective cohort study hypothesis-generating interviews that were conducted with seven known cases. Additionally, a retrospective cohort study ...

Influenza and Other Respiratory Viruses - John Wiley & Sons

Norovirus outbreak in a cruise ship sailing around the ...

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JC2012-03 German Outbreak E Coli With Sprouts - Dr Chow - authorSTREAM Presentation ... of the affected subjects 90% adults 2/3 female 1 St case control study was conducted on May 23 and 24 Source of infection: Raw food items such as tomatoes, Cucumbers or leave salad Study conducted by federal agencies under: the Auspices of the German ...

Norovirus outbreak in a cruise ship sailing around the ...

Keywords: - stacks.cdc.gov

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Practice exam 1, Practice Exam 2, Practice Exam 3 study guide by lizmcgee includes 471 questions covering vocabulary, terms and more. Quizlet flashcards, activities …

Keywords: - stacks.cdc.gov

The author overall used a retrospective cohort study ...

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The Ebola outbreak is an example of an epidemic that could have been a pandemic but efforts were made to quarantine infected individuals and increase screening for those who were around those who were infected. ... The main difference between a cohort study and a case-control study is that there is no randomization in a cohort study. Leszek K.

The author overall used a retrospective cohort study ...

JC2012-03 German Outbreak E Coli With Sprouts - Dr Chow ...

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Once case history and exposure data has been collected for cases in an outbreak, an epidemiologic study (e.g., case series, cohort, or case-control) may be undertaken to identify a common source of exposure among cases.

JC2012-03 German Outbreak E Coli With Sprouts - Dr Chow ...

Practice exam 1, Practice Exam 2, Practice Exam 3 ...

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International flight-related transmission of pandemic influenza A(H1N1)pdm09: an historical cohort study of the first identified cases in the United Kingdom.

Practice exam 1, Practice Exam 2, Practice Exam 3 ...

10 Best Discussion Board 3 images | Study design, Case ...

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Download as PDF, TXT or read online from Scribd. Flag for inappropriate content. Descarga

10 Best Discussion Board 3 images | Study design, Case ...

ISDH: Epi-Ready Team Training: Foodborne Illness Response ...

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Search the history of over 347 billion web pages on the Internet.

ISDH: Epi-Ready Team Training: Foodborne Illness Response ...

International flight-related transmission of pandemic ...

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In 2009, following a bike race, a gastrointestinal illness outbreak affected many participants. A cohort study showed an attack rate of 16·3% with the main risk factor being mud splashes to the face. Considering these findings, in 2010 recommendations to participants in the bike race were issued and environmental control measures were implemented.

International flight-related transmission of pandemic ...

Mamu | Outbreak | Epidemiology

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The study supports the proposition that tourism destinations’ crisis and disaster preparation and planning are essential. In the specific case of The Gambia, the destination would have benefited from a comprehensive risk assessment to identify any substantial hazards associated with the Ebola outbreak.

Mamu | Outbreak | Epidemiology

Full text of "A prospective cohort study to evaluate ...

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Outbreaks and Infection Emergencies Basics of Infection Prevention 2-Day Mini-Course November 2017 L’Tanya English, RN, MPH ... o Need to cohort/isolate patients, cohort staff? 34 . ... –Case control study 46 . SITE INVESTIGATION •Entrance/exit conference •Outbreak Details

Full text of

Karin Nygård - Academia.edu

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The book’s chapters are organized around three main themes: general concepts and tools of epidemiology; major study designs – randomized trials, cohort studies, case-control studies, and ecologic studies; and special topics, such as screening, outbreak investigation, and the use of epidemiology to evaluate policies and programs.

Karin Nygård - Academia.edu

‘No Ebola…still doomed’ – The Ebola-induced tourism crisis ...

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Published in print July 2014 | ISBN: 9780195314465 Published online February 2015 | e-ISBN: 9780199387793 | DOI: https://dx.doi.org/10.1093/med/9780195314465.003.0015

‘No Ebola…still doomed’ – The Ebola-induced tourism crisis ...

Outbreaks and Infection Emergencies

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Outbreaks and Infection Emergencies

Cohort Studies : Epidemiologic Methods - oi

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Cohort Studies : Epidemiologic Methods - oi
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