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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 University of Maryland are employing innovative techniques in their efforts to eradicate malaria. Their approach involves injecting spider and scorpion venom into already toxic fungi, in order to kill the malaria vector. By targeting the vector using this technique, scientists may be able to kill larger populations of disease-carrying and insecticide-resistant mosquitoes. The venom acts as a neurotoxin, and the fungus acts as the catalyst to transfer the toxin into the mosquito. The effects of this method were clear: First, the mosquito stopped feeding. Then, the neurotoxin killed the vector. While there are concerns about using venom in wild settings, the Environmnetal Protection Agency (EPA) has approved this method and has noted that neither the venom nor the fungus pose a threat to birds, mammals, or other insects. Not all mosquitoes carry diseases—some are simply a nuisance. When it comes to vector control, methods such as insect traps trap and kill all mosquitoes indiscriminately. This makes identifying the species known to carry diseases from among hundreds of dead vectors quite difficult. However, new traps created by Microsoft have the capacity to scan each mosquito that enters the system. If the wings match the wings of a disease-carrying species, the system traps the mosquito in its own cell. This system correctly identifies disease-carrying vectors 90 percent of the time, thus making catching and identifying specific mosquito species much easier. The system is currently expensive, with each system costing several thousand dollars. However, scientists hope to drive the price down to a few hundred dollars to allow for worldwide distribution. Researchers at EcoHealth Alliance studied viruses in animals to investigate which species pose the greatest threat to humans. The researchers found that about one-third of known animal viruses—about 200 viruses total—are zoonotic, or capable of animal-to-human transmission. The researchers then categorized which animals would most likely pose a threat to humans based upon how many of the zoonotic diseases affect each animal species, and which of those animals interact the most with humans. They found that rodents and non-human primates were the two most virally promiscuous creatures, with the highest chance of transmitting viruses to humans. 

In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week. Brazilian researchers have created a low-cost biosensor product capable of detecting proteins in the membranes of cells infected with dengue, providing a diagnosis in just a few minutes. During its initial testing process, the tool was able to confirm the presence of dengue in all contaminated blood samples tested. While this is a positive start, more testing needs to be done to ensure the tool is continuously reliable in diagnosing dengue and explore options to reduce the price further. If the device proves to be both inexpensive and reliable down the road, it could be a revolutionary tool for diagnosing dengue around the world. In a research lab in Seattle, Washington, Gary Buchko and his team are studying the foundation of the world’s most infectious diseases: proteins. The team is responsible for some of the most groundbreaking work in this niche area of science and have recently identified their 1,000th protein structure responsible for infectious diseases in humans. With the size of a protein being one ten-thousandth the width of a human hair, the work they do is tedious and complex and could take months or years to unlock one single protein structure. But it’s revealing critical information to help design molecules to disrupt or disable the process of these pathogens, paving the way for new vaccines, treatments, and other solutions A compound in Italian soil has been found to have impressive antibiotic properties. The compound, pseudouridimycin (PUM), mimics an RNA building block and is capable of blocking specific polymerase, or enzymes capable of transcribing DNA into RNA. This is important because it can block bacterial polymerase–bacterial enzymes that can make you sick–but it leaves human polymerase intact, allowing PUM to be a highly specific antibiotic tool. Because of this ability as well as the unique structure of the compound, PUM is ten times less likely to trigger a resistance. While this compound has only been tested on animals, results have been promising, and scientists are hoping to advance to human trials within the next three years.