Purpose of review-This study aimed to review how digital health has been used for STI/HIV prevention, testing, and treatment.Recent findings-A scoping review was conducted by searching five databases for peerreviewed literature published between March 2018 to August 2019. 23 out of 258 studies met the inclusion criteria and were assessed. Six studies used digital platform to enhance STI/HIV prevention messaging; four studies found that digital health can provide vivid promotional information and has been instrumental in increasing the accessibility and acceptability of STI/HIV testing; three studies reported digital health provides a channel to understand and interpret the discourses on PrEP and increase PrEP uptake; three studies focused on refining big data algorithms for surveillance; four studies reported on how digital interventions could be used to optimize clinical Interventions; and four studies found digital interventions can be used to assist mental health services.Summary-Digital health is a powerful and versatile tool that can be utilized in the production of high-quality, innovative strategies on STIs and HIV services. Future studies should consider focusing on strategies and implementations that leverage digital platforms for network-based interventions, in addition to recognizing the norms of individual digital intervention platforms.

ObjectivesTo develop a consensus statement to provide advice on designing, implementing and evaluating crowdsourcing challenge contests in public health and medical contexts.DesignModified Delphi using three rounds of survey questionnaires and one consensus workshop.SettingUganda for face-to-face consensus activities, global for online survey questionnaires.ParticipantsA multidisciplinary expert panel was convened at a consensus-development conference in Uganda and included 21 researchers with experience leading challenge contests, five public health sector workers, and nine Ugandan end users. An online survey was sent to 140 corresponding authors of previously published articles that had used crowdsourcing methods.ResultsA subgroup of expert panel members developed the initial statement and survey. We received responses from 120 (85.7%) survey participants, which were presented at an in-person workshop of all 21 panel members. Panelists discussed each of the sections, revised the statement, and participated in a second round of the survey questionnaire. Based on this second survey round, we held detailed discussions of each subsection with workshop participants and further revised the consensus statement. We then conducted the third round of the questionnaire among the 21 expert panelists and used the results to finalize the statement. This iterative process resulted in 23 final statement items, all with greater than 80% consensus. Statement items are organised into the seven stages of a challenge contest, including the following: considering the appropriateness, organising a community steering committee, promoting the contest, assessing contributions, recognising contributors, sharing ideas and evaluating the contest (COPARSE).ConclusionsThere is high agreement among crowdsourcing experts and stakeholders on the design and implementation of crowdsourcing challenge contests. The COPARSE consensus statement can be used to organise crowdsourcing challenge contests, improve the rigour and reproducibility of crowdsourcing research and enable large-scale collaboration.

Research mentoring programs are limited in many low- and middle-income countries (LMICs). The TDR Global initiated a global crowdsourcing open call soliciting proposals on how to improve research mentorship in LMICs. The purpose of this study is to examine ideas submitted to this open call to identify the ways to improve research mentorship in LMICs. Open calls have a group of individuals solve all or part of a problem and then share solutions. A WHO/TDR/SESH crowdsourcing guide was used to structure the open call. Each submission was judged by three independent individuals on a 1–10 scale. Textual submissions were extracted from eligible proposals and qualitatively analyzed via inductive and deductive coding techniques to identify themes. The open call received 123 submissions from 40 countries in Asia (49), Africa (38), Latin America (26), and Europe (10). Among all participants, 108 (87%) had research experience. A total of 21 submissions received a mean score of 7/10 or higher. Our thematic analysis identified three overarching themes related to prementoring, facilitation, and evaluation. Prementoring establishes mentor–mentee compatibility to lay foundations for mentorship. Facilitation involves iterative cycles of planning, communication, and skill improvement. Evaluation creates commitment and accountability within a framework of monitoring. This global crowdsourcing open call generated numerous mentorship ideas, including LMIC-contextualized facilitation tools. The open call demonstrates a need for greater focus on mentorship. Our data may inform the development of formal and informal mentoring programs in LMIC settings.

Background The evolution of organ asymmetries is less explored than the field of organ morphology and coiling. The digestive tract of elasmobranchs provides a fascinating model for studying the evolution of morphological asymmetries. Unique to elasmobranchs and all basal fishes is the spiral intestine, which may represent an intermediate morphology in evolution from the straight gut of lamprey to the elongated coils of higher vertebrates. The short spiral allows for a large absorptive surface area that can fit into a restrictive abdominal space. Results Using histology and high resolution microCT, we provide the first 3D morphometric analysis of the spiral intestine during development in the little skate, Leucoraja erinacea. Spiral formation is initiated by asymmetric growth in the mesenchyme, causing a bulging fold that protrudes into the lumen of the gut. As development proceeds, the fold elongates and spirals into a right‐handed helix. Spiraling progresses along the anterior‐posterior axis and is likely the result of mechanical forces driven by the asymmetric growth of surrounding tissues. After initial asymmetric growth, radial constraints from within the gut tube create constrictive forces further propagating spiraling. Conclusion We propose a model for potential biophysical mechanisms that direct the morphogenesis of the spiral intestine.