Breakthroughs Blog: Ebola

Interested in more global health innovation news? Every week GHTC scours media reports worldwide to deliver essential global health R&D news and content to your inbox. Sign-up now to receive our weekly R&D News Roundup email. In this editorial piece, Dr. Jenniffer Mabuka of the African Academy of Sciences makes a case that Africa needs to develop a research base to help detect and monitor a range of pathogens and better address disease outbreaks on the continent. Mabuka explains, “A thorough base of research would result in tools that will speed up detection and containment of future outbreaks, generate the knowledge base to help predict future outbreaks of known origins, and help accelerate the development of diagnostics, efficacious drugs and vaccines.” She notes that investing in research and development must be a priority for African governments as recent outbreaks serve as a reminder that equatorial Africa is a hotbed for emerging and re-emerging diseases. A group of scientists has developed a technique to modify a strain of rice to produce HIV-neutralizing proteins. While further study is needed, the researchers believe this technique could offer promise as a low-cost approach for low- and middle-income countries to manufacture topical microbicides, which are compounds that can be applied to the vagina or rectum to reduce the risk of HIV infection. Given the research team was able to alter the rice to simultaneously produce three key proteins, a combination necessary to produce a microbicide with broad coverage against multiple HIV strains, the plant’s seed extract could be used directly as a microbicide without the need for additional costly processing. Researchers at Vanderbilt University Medical Center have achieved an important step forward in developing a broadly effective antibody treatment against the three major Ebola strains. The research team reported the isolation of two potent monoclonal antibodies from human survivors of the Ebola virus. In cell culture studies, these antibodies efficiently neutralized the Zaire, Sudan, and Bundibugyo strains of the virus. Further study is required to determine if these antibodies can be combined into an injectable for use in people at high risk of being infected with the Ebola virus. The hope is that the injected antibody “cocktail” would seek out and destroy the virus before it has the chance to wreak havoc on the human body.

Interested in more global health innovation news? Every week GHTC scours media reports worldwide to deliver essential global health R&D news and content to your inbox. Sign-up now to receive our weekly R&D News Roundup email. In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week. In the past year, outbreaks of high-fatality diseases and pathogens such as Ebola, MERS, Zika, Nipah virus, Lassa fever, and Rift Valley fever have caused at least 190 deaths and cost millions. While these outbreaks have remained relatively contained, health officials warn these diseases all have the potential to strike again and cause a global epidemic that could kill thousands, wreak economic havoc, and threaten global security the world over. According to experts, the lack of investment in research and development is contributing to this risk. The technology company Univercells has raised over US $18.8 million in series B funding to support continued development of its platform to manufacture cost-efficient biologics. This comes on the heels of positive results from a pilot program of the company’s affordable vaccine manufacturing platform. The pilot, which tested production of the Sabin inactivated polio vaccine, showed the platform could delivers 43 million doses of the vaccine per year at a cost of US $0.15 per dose—considerably lower than current versions on the market. Univercells’ backers believe these two manufacturing platforms have incredible potential to make biologics and vaccines more affordable and accessible worldwide. The World Health Organization declared in May that Nepal has eliminated trachoma as a public health problem. Trachoma, a bacterial infection that causes swollen and inverted eyelids, is the world’s leading cause of blindness with approximately 190 million people in 41 countries at risk worldwide. Nepal follows in the footsteps of Cambodia, Laos, Mexico, Morocco, Oman, and Ghana in a list of countries that have eliminated trachoma since a global campaign to eliminate the disease was launched twenty years ago. Annual administration of antibiotics in at-risk areas and improved hygiene practices have helped drive this progress. 

Interested in more global health innovation news? Every week GHTC scours media reports worldwide to deliver essential global health R&D news and content to your inbox. Sign-up now to receive our weekly R&D News Roundup email. In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week.  Spanish researchers at Madrid's October 12 Hospital are working to develop what would be the world’s first vaccine against all five strains of the Ebola virus. The research team, along with scientists at two other hospitals in Madrid, have examined blood samples taken from three people cured of Ebola in Spain. These three people produced what lead researcher, Rafael Delgado, called ‘very effective’ antibodies against the Zaire strain with which they were infected. Delgado noted researchers aim to reproduce these antibodies on a larger scale that would make them effective against all five strains of the Ebola virus. An experimental vaccine developed by Merck was administered during the outbreak in the Democratic Republic of Congo in May; however, it is only effective against the Zaire strain. PREDICT, a global surveillance program that aims to avert future pandemics in the human population, has discovered a new virus that infects wrinkle-lipped bats. The virus, discovered in Myanmar, is the first of its kind to be detected on a global scale and is in the same virus family as the ones that cause SARS and MERS. The research team also identified among the Myanmar bats a second new virus previously found in Thailand, conveying how diseases can easily spread globally. Although these new viruses are related to viruses that have previously caused deadly epidemics in humans, more research is required to determine if either new virus poses a threat to humans. An experiment by Australian researchers has killed 80 percent of disease-carrying mosquitoes in trial locations across north Queensland. The experiment—carried out by scientists from the Commonwealth Scientific and Industrial Research Organization and James Cook University, in partnership with Verily—targeted a specific type of mosquito, the Aedes aegypti mosquito, which spreads diseases such as Zika and dengue fever. Using a process called the Sterile Insect Technique, researchers bred almost 20 million mosquitoes, infecting males with bacteria that made them sterile. The sterile male mosquitos did not bite or spread disease and when they mated, the resulting eggs did not hatch causing a crash in the population. Further field trials may be held in other parts of Australia.

Interested in more global health innovation news? Every week GHTC scours media reports worldwide to deliver essential global health R&D news and content to your inbox. Sign-up now to receive our weekly R&D News Roundup email. In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week. A new, rapid diagnostic tool designed to detect Ebola in low-resource settings—EbolaCheck—is heading into its first field trial. Like other Ebola diagnostics, it works by detecting viral genetic material in blood, but it also has several characteristics that make it innovative and easy to deploy in the field: It is mobile; inexpensive, costing ten times less; rapid, taking as little as 70 minutes; needs minimal power to operate, and can be administered by staff with little training.The first field trial is scheduled to launch in rural areas of Brazil in January 2018, with an intent to study potential deployment challenges like temperature, humidity, and operating procedure. A group of Ugandan millennials designed a low-cost, reusable malaria diagnostic tool—Matibabu—capable of quickly detecting malaria without drawing blood. Matibabu beams a red laser on an individual’s finger, detecting changes in shape, color, and concentration of red blood cells, all of which are affected by the presence of the malaria-causing parasite. Matibabu can diagnose malaria in only two minutes (compared to 30 minutes or more for a blood test) with an 80 percent success rate, though the developers noted some patient skepticism due to the simplicity and uniqueness of the test. Matibabu has already generated strong interest among the global community: The designers won the 2013 United Nations Women’s Empowerment award and are shortlisted for the Royal Academy of Engineering’s Africa prize for engineering innovation, with an award of £25,000. If the developers win, they plan to use the funds to begin clinical trials and work to increase the accuracy of the tool. Through gene therapy, researchers at UCLA engineered blood-forming stem cells in animals to produce chimeric antigen receptor (CAR) molecules that create T-cells capable of recognizing and destroying HIV-infected cells. These engineered cells persisted in destroying infected cells for more than two years after the initial edit, offering hope as a method to create long-term HIV immunity. While these findings are preliminary and the sample size is small, they are the first to show that this method of gene editing works in creating targeted immune cells that can mature and become functional throughout the body. This method of gene editing, coupled with other effective treatments like antiretroviral therapy, may pave the way for safe and lifelong HIV immunity.