Effectiveness of case-area targeted interventions including vaccination on the control of epidemic cholera: protocol for a prospective observational study.

INTRODUCTION: Cholera outbreaks in fragile settings are prone to rapid expansion. Case-area targeted interventions (CATIs) have been proposed as a rapid and efficient response strategy to halt or substantially reduce the size of small outbreaks. CATI aims to deliver synergistic interventions (eg, water, sanitation, and hygiene interventions, vaccination, and antibiotic chemoprophylaxis) to households in a 100-250 m 'ring' around primary outbreak cases. METHODS AND ANALYSIS: We report on a protocol for a prospective observational study of the effectiveness of CATI. Médecins Sans Frontières (MSF) plans to implement CATI in the Democratic Republic of the Congo (DRC), Cameroon, Niger and Zimbabwe. This study will run in parallel to each implementation. The primary outcome is the cumulative incidence of cholera in each CATI ring. CATI will be triggered immediately on notification of a case in a new area. As with most real-world interventions, there will be delays to response as the strategy is rolled out. We will compare the cumulative incidence among rings as a function of response delay, as a proxy for performance. Cross-sectional household surveys will measure population-based coverage. Cohort studies will measure effects on reducing incidence among household contacts and changes in antimicrobial resistance. ETHICS AND DISSEMINATION: The ethics review boards of MSF and the London School of Hygiene and Tropical Medicine have approved a generic protocol. The DRC and Niger-specific versions have been approved by the respective national ethics review boards. Approvals are in process for Cameroon and Zimbabwe. The study findings will be disseminated to the networks of national cholera control actors and the Global Task Force for Cholera Control using meetings and policy briefs, to the scientific community using journal articles, and to communities via community meetings.

Mental Health-Related Digital Use by University Students: A Systematic Review.

Introduction: Mental health problems are common among students at university, representing a major public health concern. The internet and new technologies are widely used by students and represent a significant resource to them for mental health information and support. Aim: The aim of this systematic review is to summarize and critique studies of mental health-related digital use (including purposes, advantages, and barriers) by students worldwide, to support the implementation of future digital mental health interventions targeting university students. Methods: We searched for peer-reviewed articles published between January 2008 and May 2018 by using Pubmed, Google Scholar, PsycINFO, PsycARTICLES, Psychology and Behavioral Sciences Collection, and SocINDEX. Studies were coded by author, year of publication, country, research design, recruitment and sampling, data collection, analysis method, key findings, and mean quality score. Outcomes were synthetized through the textual narrative synthesis method. Results: Of the 1,487 titles and abstracts screened, 24 articles were critically reviewed. Sample sizes ranged from 19 to 6,034 participants. The two key findings were that students worldwide have a high need for mental health information and are prepared to use digital tools for their mental health and well-being. However, they are currently struggling to discern trustworthy information online and are expressing a desire for reliable devices handling their sensitive data. Conclusions: Through the description of patterns in university students' mental health-related digital use, this review outlines important features for potential web- and mobile-based interventions for promoting mental health and preventing mental illness at the university.