Homepage - The Bill & Melinda Gates Medical Research Institute We develop drugs biologics and vaccines for those in the greatest need. Research Priorities Gates MRI focuses on programs aimed at reducing the burden of tuberculosis TB malaria diarrheal diseases and maternal newborn and child illnesses in lowandmiddleincome countries LMICs. Malaria Caused by Plasmodium parasites spread through the bite of infected Anopheles mosquitoes Tuberculosis An infectious disease caused by Mycobacterium tuberculosis Mtb bacteria spread by bacteria expelled into the air Diarrheal Diseases Caused by a number of pathogens and a major cause of mortality in LMICs Maternal Newborn and Child Health Development of treatments that may help lower the rates of newborn and child mortality About Us The Bill Melinda Gates Medical Research Institute is a nonprofit organization dedicated to the development and effective use of novel biomedical interventions addressing substantial global health concerns and for which the required development investment by traditional biopharmaceutical organizations is lacking. Learn more about Gates MRI Work With Us We are a diverse group of creative innovators and advocates.