Guitele Rahill and Manisha Joshi of the University of South Florida in the U.S. will harness the Haitian tradition of storytelling to produce online videos, brochures, and posters that support pregnant teenagers in Haiti who are at high risk of depression. There has been an increase in unplanned teenage pregnancies since the 2010 earthquake, due in part to the loss of parents, and a rise in transactional sex and sexual assaults facilitated by very limited resources. Pregnancy places a substantial additional stress on these children, which in turn causes long-term difficulties for their children. In Haiti, to tell a story you announce "Krik?", and to hear it you respond "Krak!" They will use this familiar story-telling framework and actors who resemble the target group to teach pregnant teenagers about childbirth, motherhood, and how to cope with depression. They will conduct two focus groups of six pregnant teens to identify the specific challenges they face, and use their feedback to help ensure the approach will work.

Bernard Appiah of Texas A&M School of Public Health in the U.S. will produce a one-hour community radio program to be aired twice per week comprising a 10-minute radio drama serial on infant vaccines, a 10-minute panel discussion by community health workers, and a 30-minute phone-in by listeners, to improve on-time childhood vaccinations in Ethiopia. In 2016, on-time and full immunization coverage in Ethiopia was only achieved for 39% of children between one and two years of age, despite long-term efforts to improve it. One of the main reasons for this was lack of communication with mothers about immunizations. To address this, they will harness the popularity of community radio in Ethiopia. They will engage mothers, community health workers, and radio actors to help design a radio drama incorporating relevant topics on childhood immunizations, and train 20 health workers to be part of radio panel discussions. They will air the radio program for six months in two districts, and determine its impact on timely immunization coverage in a selected cohort of mothers with infants.

Bill Thies and the team of 99DOTS aim to achieve 99% TB drug adherence using a combination of basic mobile phones and augmented blister packaging to provide real-time medication monitoring at drastically reduced cost. The approach is to utilize a custom envelope, or blister card, into which each pack of medication is inserted and sealed by the care provider. When the patient dispenses medication from the blister pack, the pills also break through perforated flaps on the blister card. On the back side of each flap is a hidden number. Patients submit these numbers using their mobile phone as evidence that they have dispensed medication. To avoid incurring any mobile charges, the numbers are used to complete a phone number and deliver a "Missed call" (Missed calls are free if they are not pointed to a VoiceMail). Using this system patients also receive a series of daily reminders (via SMS and automated calls). Missed doses trigger SMS notifications to care providers, who follow up with personal, phone-based counseling. Real-time adherence reports are also made available on the web.

Rebecca Dempster of HIAS in the U.S. will develop an online game- and mentorship-based intervention to improve the mental health of refugee adolescent mothers in Kenya that integrates into their daily lives and helps them develop new skills. Digital games can help treat mental health disorders such as depression particularly in young people because they have a natural appeal and are easy to access from home. They will recruit ten young mothers, a psychologist, and software programmers to design a mental health game so that it can be used to identify those with mental health disorders and connect them with counselors, and provides interactive challenges to help treat and protect against those disorders as well as build relevant life skills. They will then train these young mothers to act as mentors to support the online game, and pilot test their approach on a sample of 15 refugee adolescent mothers over three months to evaluate feasibility, acceptability, and effect on maternal depression.

L. David Sibley at Washington University in St. Louis in the U.S. is developing a long-term in vitro intestinal epithelial culture system for the intracellular parasite Cryptosporidium, which causes severe diarrheal disease in both humans and animals, and is refractory to many anti-parasitic drugs. Currently, Cryptosporidium can only be grown in infected calves or in short-term in vitro cultures, which cannot be used for the high-throughput chemical screens needed to identify new drugs. In Phase I, they optimized the in vitro culture of isolated intestinal stem cells from human and mouse biopsies, and identified factors to control their differentiation into primary epithelial monolayers, which can better support the growth of intestinal pathogens. This led to around a five-fold increase in the rate of asexual replication of Cryptosporidium, which was enough to successfully test a chemical growth inhibitor. In Phase II, they will further improve culture conditions to support longer-term in vitro growth of Cryptosporidium, which will then be tested for stability and infectivity. They will also develop antibodies against specific developmental stages to help identify culture conditions that enable the parasite to undergo a complete life cycle, which will be valuable for culturing and screening efforts.

Edwin Routledge of Brunel University in the United Kingdom will work towards developing an artificial snail decoy to attract the parasite Schistosoma mansoni, which causes chronic disease. The parasites first develop inside aquatic snails, which they locate via chemical cues (chemoattractants), before they can infect humans. Routledge will identify the relevant chemoattractants by isolating and fractionating chemicals from the snails, and test the ability of these chemicals to attract the parasites. Effective chemoattractants will be characterized and ultimately incorporated into a biodegradable matrix to generate an artificial snail that is easy to deploy in the field and can trap and destroy the parasites, thereby reducing human transmission.

Saurabh Agarwal of Deeper Learning Innovations Private Limited in India will build an interactive, digital teaching platform using advanced data analytics and artificial intelligence algorithms to enable teachers across the globe to more effectively teach life skills to every child. Teaching standards in developing countries suffer from limited access to quality content, restricted teaching methods for teachers, and a lack of ways to transfer knowledge and skills to other teachers and parents. Life skills such as problem solving and communication that are needed to address 21^st century challenges such as health, wellness, and gender equality are far better learned by experience and reflection, rather than reading and lectures. They will build the platform and incorporate life skills modules designed by learning experts and teachers containing multi-lingual and contextualized content for global access, a teacher's discussion forum, and a module designed by teachers to help parents support their child's education. The goal is to make the platform freely available and accessible to all teachers across the globe.

Elijah Songok of the Kenya Medical Research Institute in Kenya will design and test a fortified school meal product with deworming properties for treating soil transmitted helminths (parasitic worms) among schoolchildren in developing countries. Schoolchildren are most at risk of infection-associated morbidities such as stunting and chronic dysentery. However, current mass drug administration strategies are associated with the development of drug resistance, and may not be sustainable long term. They will fortify cornflour with seed extracts of the tropical fruit, Carica papaya (pawpaw), which can significantly increase clearance of the parasite, and use it to make porridge, which is cheap and a common school meal snack in developing countries. They will test its efficacy in a randomized pilot study in six elementary schools in rural Kenya.

Mario Ostrowski of the University of Toronto in Canada will test the theory that alterations of host cells by HIV might also activate human endogenous retroviruses in the same cells. Ostrowski will express antigens of an endogenous retrovirus to study whether they might also mark HIV infected cells, providing a basis for the development of a new HIV vaccine.

Bin Fan of the Research Center for Eco-environmental Sciences in China seeks to develop a decentralized sanitation system which uses a low-cost waterless, vacuum system to collect excrement and kitchen waste. The combined waste can then be processed into organic fertilizer.

Mark van Raaij of the Spanish National Research Council (CSIC) at the National Center for Biotechnology in Spain will work to build a library of engineered bacteriophages that can recognize, infect, and kill a range of enterobacteria such as Salmonella and E. coli.

Pushpendra Singh of IIIT Delhi in India will develop interactive training and mentoring sessions for community health workers in India (ASHAs) using mobile phones and interactive voice response systems so they can provide better public healthcare in rural communities. Current training programs are run by medical professionals and require the workers to visit a health center, which may be inconvenient. The lack of medical experts has also reduced the frequency of these programs. These limitations could be overcome with online sessions whereby one expert trains multiple health workers remotely. They have already developed the format of the sessions, which involves an expert delivering a defined curriculum to groups of health workers followed by a question and answer session, and shown that it improved the knowledge and confidence of the health workers in a pilot test. They will now scale up the testing to 500 health workers, and also evaluate the platform as a peer-to-peer learning mechanism for health workers to share their experiences and learn from each other without the need for an expert.

Eva Wiberg-Itzel of the Karolinska Institute in Sweden proposes to develop an easy and informative test which measures the concentration of lactate in the amniotic fluid of laboring women to help obstetricians and midwifes predict labor outcomes. Measuring lactate levels can give care providers an early indication of whether interventions are needed to reduce maternal and infant mortality in developing countries.

Jeffrey R. Bloomquist of the University of Florida in the U.S. will investigate a voltage-sensitive potassium channel as a new target for mosquitocides.

Alberto Bilenca of Ben-Gurion University of the Negev in Israel will develop a cell phone imaging system that can non-invasively detect malaria parasites in the blood. The system uses a polarized red laser pointer to illuminate tissue such as a finger tip, and a zoom lens and polarizing filter on existing cell phone cameras, to create images that depict hemozoin crystals in blood following malaria parasite infection, as well as micro-obstructions in the circulatory system that result from the infection.

Simon Carding of the University of East Anglia in the United Kingdom will test the feasibility of a new technology using live commensal gut bacteria for the controlled delivery of poliovirus antigens to the intestinal mucosa to generate protective viral immunity.

Marcela Pasetti of the University of Maryland in the U.S. will generate an in vitro model of the gut using intestinal stem cells and immune cells to better mimic the damaged and inflamed guts of young children in developing countries for testing new treatments. Current so-called human enteroid models lack additional relevant cell types found in the intestine, particularly immune cells, which are known to play an important role in gut health and function. They will expose their new miniature pediatric gut model to enteric pathogens and test the ability of human breast milk and bovine hyperimmune colostrum to repair the subsequent damage.

Abhijit Das of Arogya Medtech Pvt. Ltd. in India will develop a device - CEREBROS - that is a modular unit combining electroencephalography (EEG) and near infrared spectroscopy (NIRS) together with an Internet of Things (IoT) component incorporating a telemonitoring platform. This system enables continuous remote monitoring of cerebral hypoxia and seizures and early detection and management of hypoxic ischemic encephalopathy (HIE) at point-of-care. The device is in the form of a wearable cap for neonates. It will also include a multivariate classifier incorporating quantitative EEG metrics and cerebral oximetry metrics, which will identify disease-specific patterns that can be presented remotely by a neonatologist simultaneously in voice, text, pictures, or video or animations. The device could be provided, through both public and private care providers, under an affordable rental or pay-per-use model. The device provides an easy-to-use alternative to structural imaging (CT or MRI) that has better sensitivity and specificity, especially for neonates or infants less than 2 years old.

Joao Guilherme Bezerra Alves from the Instituto de Medicina Integral Professor Fernando Figueira in Brazil will perform a randomized controlled trial to assess whether a daily oral supplement of magnesium citrate can prevent placental vascular disease, which can lead to preterm birth. Placental vascular disease restricts the flow of nutrients to the fetus and can cause growth restriction and maternal hypertensive disorders. Magnesium is known to promote placental vascular flow, and magnesium citrate is safe, inexpensive and easily absorbed in the body. They will perform a clinical trial in two large hospitals in Brazil in which 3,000 pregnant women will be offered a daily magnesium supplement or a placebo control starting from up to 20 weeks of gestation and continuing until birth. The effect on various outcomes including placental function, preterm labor, and mother and child health will be evaluated.

George Warimwe of the Jenner Institute at the University of Oxford in the United Kingdom will develop a vaccine to protect a variety of species, including humans, sheep and cattle, against Rift Valley fever, which can cause serious illness. Current vaccines that are in development have safety concerns for use in humans. They have developed a Rift Valley fever vaccine using a replication-deficient simian adenovirus as a safe vector that is easy and inexpensive to manufacture, and have tested its safety and immunogenicity in mice, and begun field-testing in sheep in Kenya. They will test safety and immunogenicity of the vaccine and the effect of an adjuvant in calves and goats, and compare this with the data from mice and sheep.

Mahua Choudhury of University of Colorado in the U.S. will develop a database of epigenetic signatures, changes in DNA and proteins caused by non-genetic factors such as poor nutrition, smoking and environmental contaminants, that could be used as predictors of pre-eclampsia. This information will be used to develop a cost- effective diagnostic tool to detect these markers in blood or urine.

Preterm birth leads to more annual neonatal deaths (1 million) than any other single cause; these deaths primarily occur in low income settings where many infants are born at home and gestational age is rarely assessed. Innovative ways to identify preterm infants in the community are needed to facilitate rapid and appropriate targeting of interventions and referral. Newborn clinical assessment by medically trained personnel allows accurate estimation of gestational age, but methods are complex and simplified methods have not been developed and validated for use by community health workers (CHWs). We have developed a simple, color-coded pictorial scorecard intended for use by CHWs to identify early preterm (<34 weeks=red zone) and late preterm (34-37 weeks= yellow zone) infants. Validation of this simple tool for use by CHWs may help reduce the large burden of newborn deaths related to prematurity.

Joseph Turner of the Liverpool School of Tropical Medicine in the United Kingdom will develop a small animal model of the parasitic disease onchocerciasis, also called river blindness, which is the second leading infectious cause of blindness. Treatment options for filarial infections are currently limited and lack effectiveness. Thus, small animal models of filarial infections are invaluable for preclinical testing of candidate drugs. In Phase I, they established the mouse model by infecting mice lacking an adaptive immune system with Onchocerca parasites isolated from infected cows, and tested its feasibility for screening drugs. In Phase II, they will expand their model, and use it for preclinically testing the safety and efficacy of several candidate drugs currently under development.

Naomi Halas and colleagues at Rice University in the U.S. will design and test a prototype sterilizer that employs metallic nanoparticles to absorb solar energy for converting water to steam sufficient for sterilization of human waste. Steam is a highly effective method of sterilization, but intensive energy and infrastructure requirements have limited its small-scale use. In Phase I, they successfully built and tested a solar steam generator-driven autoclave prototype that can quickly transfer and sterilize sufficient volumes of unprocessed human waste. In Phase II, they will adapt the technology to enable the conversion of waste into briquettes suitable for use as cooking fuel, and further develop it for field tests in Kenya.