Resources Repository
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ArticlePublication 2021Measuring the News and Its Impact on Democracy
Since the 2016 U.S. presidential election, the deliberate spread of misinformation online, and on social …
Since the 2016 U.S. presidential election, the deliberate spread of misinformation online, and on social media in particular, has generated extraordinary concern, in large part because of its potential effects on public opinion, political polarization, and ultimately democratic decision making. Recently, however, some have argued that both the prevalence and consumption of “fake news” per se is extremely low compared with other types of news and news-relevant content. Although neither prevalence nor consumption is a…
Preferences/Values | Social Determinants | Decision Psychology | Policy/Regulation | Culture/Society | Science/Technology | North America -
ArticlePublication 2017Misinformation Lingers in Memory: Failure of Three Pro-Vaccination Strategies
People's inability to update their memories in light of corrective information may have important public …
People's inability to update their memories in light of corrective information may have important public health consequences, as in the case of vaccination choice. The authors compare three potentially effective strategies in vaccine promotion: (1) one contrasting myths vs. facts, (2) one employing fact and icon boxes, and (3) one showing images of non-vaccinated sick children. Beliefs in the autism/vaccines link and in vaccines side effects, along with intention to vaccinate a future child, were…
Preferences/Values | Infectious Diseases | Decision Psychology | Child/Nutrition | Culture/Society | Government/Law | Health/Medicine | Science/Technology | North America -
ArticlePublication 1964Epidemics and Rumors
Goffman and Newill directed attention to the analogy between the spreading of an infectious disease …
Goffman and Newill directed attention to the analogy between the spreading of an infectious disease and the dissemination of information. This article examines the spreading of a rumor from the point of view of mathematical epidemiology and briefly reports on work to be published in detail elsewhere. Authors emphasize that a mathematical model for the spreading of rumors can be constructed in a number of different ways, depending on the mechanism postulated to describe the…
Preferences/Values | Infectious Diseases | Culture/Society | Health/Medicine | Science/Technology | Global -
ArticlePublication 2020Testing for SARS-CoV-2 Antibodies
Antibody testing can determine previous exposure to SARS-CoV-2 virus. Recently, the UK government has made …
Antibody testing can determine previous exposure to SARS-CoV-2 virus. Recently, the UK government has made antibody testing available to anyone wanting it, even if there is no clinical indication. The purpose of this article is to provide guidance for when to consider antibody testing in individuals with and without symptoms suggestive of current or past SARS-CoV-2 infection. Key points made by the authors include: (1) antibody testing is likely to be most useful 2 weeks…
Probability/Bayes | Infectious Diseases | Test Performance | Technology Assessment | Clinical Care | Health/Medicine -
EditorialPublication 2020Waiting for Certainty on COVID-19 Antibody Tests — At What Cost?
This perspective anticipates the availability of serologic antibody testing and considers its potential usefulness in mitigation …
This perspective anticipates the availability of serologic antibody testing and considers its potential usefulness in mitigation policy to reduce COVID-19 transmission. For example: Could we screen for serologic antibodies as a proxy for possible immunity and identify people who could return to the workplace with less severe mitigation measures? The authors acknowledge the uncertainties raised by many policy actors, including the WHO, such as, "Do antibodies confer immunity and, if so, for how long? How accurate is…
Probability/Bayes | Infectious Diseases | Test Performance | Technology Assessment | Health Systems | Policy/Regulation | Government/Law | Health/Medicine | Global | North America -
ArticlePublication 2020Bayes' Theorem, COVID-19, and Screening Tests
This article reviews the implications of increased testing for COVID-19 using reverse transcriptase polymerase chain …
This article reviews the implications of increased testing for COVID-19 using reverse transcriptase polymerase chain reaction (rRT-PCR) through the application of Bayes’ Theorem for three hypothetical, stylized case scenarios. The scenarios involve three patients with a low, moderate, and high pre-test probability of COVID-19 infection. The category of low probability would include "asymptomatic individuals in a presumed low prevalence environment" and might vary from 10 to 20%. The category of moderate probability would include "individuals…
Probability/Bayes | Infectious Diseases | Test Performance | Clinical Care | Health/Medicine -
ArticlePublication 2020Interpreting COVID-19 Test Results: A Bayesian Approach
This article considers the following question with respect to interpreting the results of polymerase chain reaction …
This article considers the following question with respect to interpreting the results of polymerase chain reaction (PCR) assays from nasal and pharyngeal swabs for COVID-19 to inform clinical decision making: "While a positive result in an acutely ill patient is straightforward, how should physicians interpret negative tests in patients with suspected COVID-19 infection?" Using an assumption of near-perfect specificity of PCR assays for COVID-19, the authors acknowledge the uncertainty of test sensitivity. They consider two clinical scenarios…
Probability/Bayes | Infectious Diseases | Test Performance | Health/Medicine | Science/Technology | Global -
ArticlePublication 2017Estimating the Fitness Cost and Benefit of Cefixime Resistance in Neisseria Gonorrhoeae
Gonorrhoea is one of the most common bacterial sexually transmitted infections in England, and more …
Gonorrhoea is one of the most common bacterial sexually transmitted infections in England, and more than half of annual infections occur in men who have sex with men (MSM). As the bacterium has developed resistance to each first-line antibiotic in turn, an improved understanding is needed of fitness benefits and costs of antibiotic resistance to inform control policy and planning. The authors developed a stochastic compartmental model representing the natural history and transmission of cefixime-sensitive…
Risk Analysis | Infectious Diseases | Dynamic Transmission | Decision Analysis | Health Systems | Policy/Regulation | Government/Law | Health/Medicine | Science/Technology | Global -
ArticlePublication 2017Revealed Willingness-to-Pay vs. Standard Cost-Effectiveness Thresholds
This study estimates the cost-effectiveness thresholds (CETs) of 16 HIV programs in South Africa. The …
This study estimates the cost-effectiveness thresholds (CETs) of 16 HIV programs in South Africa. The use of CETs based on a country’s income per capita has been criticized for not being grounded in theory or evidence, especially in low and middle-income countries (LMICs). An alternative has been produced for South Africa, based on estimates of life years saved and the country’s committed HIV budget. The authors used a previously -published optimization method to estimate CETs,…
Preferences/Values | Infectious Diseases | Priority Setting/Ethics | Cost-Effectiveness Analysis | Economics/Finance | Health/Medicine | Sub-Saharan Africa