Breakthroughs Blog: Research Roundup

In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week. GAVI, the Vaccine Alliance has partnered with the wearable tech company Kushi Baby to bridge the immunization gap for infants in low-income communities. About 1.5 million children die every year from vaccine-preventable illnesses, and one in three do not receive the immunizations they need simply because health professionals "do not know they exist." This partnership will provide children with a wearable necklace technology that remotely tracks and updates their immunization history. The technology allows health professionals to more accurately provide the supplies needed when traveling to rural communities and reach children in need of immunization. This year 1,500 infants in Northern India received the necklaces. The partnership has a goal of increasing distribution to 5,000 necklaces by the end of the year. A new vaccine under development may lower pneumonia incidence and mortality rates by targeting additional strains of the bacteria, according to a new study published in Science Advances. Current pneumonia vaccines only target the most common strains of the illness, but this vaccine candidate targets dozens of additional strains. The candidate may also help maintain the body’s microbiome—a collection of healthy bacteria often killed during the immunization process—by “attack[ing] [bacteria] only if it breaks away from the colony to cause an illness.” The World Health Organization Strategic Advisory Group of Experts on Immunization (SAGE) has recommended a new typhoid fever vaccine that has demonstrated up to 87 percent effectiveness during a clinical study. This typhoid vaccine is the first of its kind licensed for use in children under two years of age. SAGE recommended the vaccine be given to children 6 months old and that catch-up campaigns be administered to immunize children between the ages of 6 months and 15 years of age. With drug-resistant typhoid growing in typhoid-endemic communities, the vaccine will also be a valuable tool in combatting antimicrobial resistance.  

In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week. Researchers at the 48th Union World Conference on Lung Health highlighted three promising innovations that have the potential to modernize the tuberculosis (TB) diagnostic and treatment landscape. The first innovation builds upon the current therapy monitoring protocol, which involves directly observing patients to ensure they take their medicines, in a novel and contemporary way. The new system, Remote Observation Therapy (ROT), uses an edible sensor and a wearable patch to remotely track whether patients are taking their TB medicine and assist public health professionals with treatment monitoring to ensure that patients continue and complete TB therapies. The second is an oral swab alternative to sputum tests. Current sputum tests are difficult to collect and pose various problems for patients who need to produce the sample. Instead, a simple cheek swab has delivered promising results, though the swab will still require analysis from a GeneXpert or a similar machine. Lastly, a new, rapid prototype blood test, which can detect TB in as few as 15 minutes and requires no electricity and limited medical training, is showing promise. This diagnostic tool would address a major gap in blood-based TB diagnostics. A new, oral therapy has shown promising results in clinical trials for curing sleeping sickness, a debilitating disease that affects the neurological system.. The oral drug—fexindazole—cured 91 percent of patients with severe sleeping sickness and 99 percent of patients in the early stages of the disease. Fexindazole is a much-needed alternative to current combination therapies that involve a mix of pills and intravenous infusions, which can be challenging to administer in low-resource settings where infrastructure and highly trained health workers may be limited. Wellcome Trust, with assistance from the UK government and the Bill and Melinda Gates Foundation, has announced the Global Burden of Disease Antimicrobial Resistance (AMR) project , a new research initiative to track global data on drug-resistant infections and deaths. Over four years, the project will compile relevant data, produce detailed maps for intervention and clinical purposes, and provide publicly available visual representations on AMR’s global burden. This project will allow governments and researchers to strategically target global efforts to combat AMR.

In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week. A new study suggests the Nanopatch vaccine delivery system is more efficacious in protecting against poliovirus than typical syringes or needles. Nanopatch, defined as “a microscopic vaccine delivery platform,” targets immune cells in the outer layers of the skin, as opposed to typical syringes and needles, requiring injection into the muscle. The change from muscle to immune cells results in easier administration of the vaccine as well as a reduction in the required dosage. While initial data on Nanopatch is promising, more research is needed. The World Health Organization has warned that an increase in antibiotic use in livestock will result in increased antibiotic resistance humans, potentially causing one of the biggest threats to human health. The agricultural sectors in both Europe and North America are advancing efforts to curb antibiotic use, but many countries are still lagging behind in efforts to scale back use of antibiotics. While new policies and reform around livestock antibiotic use are needed, experts note there is still a need to treat health complications in livestock, through antibiotic alternatives like animal vaccines, as well as a need for improved diagnostics. The World Health Organization, numerous aid agencies, and relevant stakeholders have announced the first global pledge to end cholera by 2030, following one of the worst outbreaks of cholera in modern history. Cholera is considered a “disease of the poor,” affecting individuals living in areas with poor sanitary and water conditions. The recent outbreak is associated with and exacerbated by weak health systems, poor infrastructure, and a lack of necessary supplies to prevent, diagnose, or treat cholera. The pledge will focus on a multifaceted approach involving improving water and sanitation as a long-term solution and use of an oral, three-year cholera vaccine to provide immediate protection.

In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week.A new low-cost and heat-stable vaccine—ROTASIL—has been found effective against severe rotavirus in phase III clinical trials. The vaccine, which was developed by the Serum Institute of India and tested in partnership with PATH, had an efficacy of nearly 39 percent in children with severe rotavirus and 55 percent against a very severe form of rotavirus. The vaccine is a hybrid of bovine and human rotavirus and is capable of targeting all five rotavirus serotypes. Indian children face a high burden of rotavirus, as the country accounts for 22 percent of all rotavirus deaths worldwide. {% component type: A GeneXpert machine. (Photo: PATH/Georgina Goodwin)India is rolling out a new program to expedite the diagnosis of pediatric tuberculosis (TB) and multi-drug resistant TB cases to speed treatment. While children generally respond well to TB treatments, a pediatric TB case is usually severe and requires a quick, accurate diagnosis to ensure effective treatment. FIND and the Revised National Tuberculosis Control Program have worked in India to establish an infrastructure to aid in accurately and quickly diagnosing children, developing a courier system to quickly relay samples from clinic to lab for diagnosis and relay results back to the health provider via text message within 24 hours. The organizations have also led an initiative that has added over 600 GeneXpert diagnostic machines throughout India. India’s goal is to make the GeneXpert machines a front-line tool for TB diagnosis.Research conducted by the National Institutes of Health (NIH) and Sanofi has created an antibody capable of killing 99 percent of HIV strains. Fighting HIV is difficult because of the virus’ ability to mutate quickly, which often results in the presence of numerous different HIV strains in a single patient. NIH and Sanofi harnessed the natural defense system of a small number of people who produce broadly neutralizing antibodies,” which can kill up to 90 percent of HIV strains in the body. The researchers combined three antibodies to produce a tri-specific antibody that has proved to be more effective than any naturally occurring antibody yet discovered. The first human clinical trial is planned for 2018.