Structured expert elicitation about Listeria monocytogenes cross-contamination in the environment of retail deli operations in the United States

Listeria monocytogenes is among the foodborne pathogens with the highest death toll in the United States. Ready‐to‐eat foods contaminated at retail are an important source of infection. Environmental sites in retail deli operations can be contaminated. However, commonly contaminated sites are unlikely to come into direct contact with food and the public health relevance of environmental contamination has remained unclear. To identify environmental sites that may pose a considerable cross‐contamination risk, to elucidate potential transmission pathways, and to identify knowledge gaps, we performed a structured expert elicitation of 41 experts from state regulatory agencies and the food retail industry with practical experience in retail deli operations. Following the “Delphi” method, the elicitation was performed in three consecutive steps: questionnaire, review and discussion of results, second questionnaire. Hands and gloves were identified as important potential contamination sources. However, bacterial transfers to and from hands or gloves represented a major data gap. Experts agreed about transfer probabilities from cutting boards, scales, deli cases, and deli preparation sinks to product, and about transfer probabilities from floor drains, walk‐in cooler floors, and knife racks to food contact surfaces. Comparison of experts' opinions to observational data revealed a tendency among experts with certain demographic characteristics and professional opinions to overestimate prevalence. Experts’ votes clearly clustered into separate groups not defined by place of employment, even though industry experts may have been somewhat overrepresented in one cluster. Overall, our study demonstrates the value and caveats of expert elicitation to identify data gaps and prioritize research efforts.     

Conflicting Agendas: The Politics of Development Aid in Drug‐Producing Areas

When international development policy prioritises goals determined by the donor's domestic policy concerns, aid agencies not only fail in their development objectives but can also generate conflict in the recipient country. In the Bolivian Chapare, where the United States is driven by the need to demonstrate success in controlling cocaine production, policies to eradicate coca leaf have led to programmes with limited development impact that increase conflict both locally and nationally. In contrast, the European Union's successful collaboration with local governments which began in 1998 provides insights into generating sustainable development and de‐escalating conflict in drug‐producing regions worldwide.     

Sexually transmitted disease services at US colleges and universities

The authors' objectives in this study were to describe the proportion of schools providing and the percentage of students with access to HIV and sexually transmitted disease (STD) education, treatment, and prevention services at 2-year and 4-year US colleges and universities. The authors mailed self-administered questionnaires to a stratified random sample (n = 910) of the 2,755 US schools with an enrollment of more than 500 students; 736 (81%) returned the survey. Four hundred seventy-four schools (60%) had a health center, representing 73% of students. Schools with a health center or housing for students were more likely to provide STD education; 52% of the schools made condoms available to students. Sixty percent of schools with health centers could test for both Chlamydia trachomatis and Neisseria gonorrhoeae, but only 67% of these schools screened women for these infections. Although most schools provided some prevention education, access to prevention, testing, and education should be increased at schools where these services are possible but not available.     

Physical training as a substance abuse prevention intervention for youth

Program evaluation data from school and community applications of a physical fitness drug prevention program is presented. A train-the-trainer methodology was applied to install the program in twenty-two settings within the state of Illinois. The physical training program consisted of exercise and educational modules delivered over a twelve-week time period that focused on learning values and life skills through exercise. Complete pre-post data were obtained on 329 participating youth at six school and community based sites. Significant increases were demonstrated in physical activity and physical fitness (cardiovascular endurance, strength, and flexibility). Youth self-report data indicated significant decreases in risk factors such as low self-concept, poor school attendance, anxiety, depression, and number of friends who use alcohol and drugs. There were significant reductions in the percentage of youth who used cigarettes, smokeless tobacco, and alcohol. It was concluded that a strong relationship was demonstrated for increased fitness leading to lowered risk factors and usage patterns. Likewise, the train-the-trainer model was shown to be an effective installation approach to expand fitness programming within prevention settings.     

Levi's corporate AIDS programme

AIDS is a contemporary phenomena that has been extensively covered by the media but its impact on the employers of the sufferers is only now being measured and assessed. This article describes the personnel policies that have been developed by one particular organization to deal with the problem. Educational and training programmes have been initiated and management given clear directives to ensure that high morale and productivity are maintained during potentially adverse situations.     

Infinitesimally Robust estimation in general smoothly parametrized models

The aim of the paper is to give a coherent account of the robustness approach based on shrinking neighborhoods in the case of i.i.d. observations, and add some theoretical complements. An important aspect of the approach is that it does not require any particular model structure but covers arbitrary parametric models if only smoothly parametrized. In the meantime, equal generality has been achieved by object-oriented implementation of the optimally robust estimators. Exponential families constitute the main examples in this article. Not pretending a complete data analysis, we evaluate the robust estimates on real datasets from literature by means of our R packages ROptEst and RobLox.