PATH is a global non-profit organization that works to accelerate health equity by bringing together public institutions, businesses, social enterprises, and investors to solve the world's most pressing health challenges. PATH was founded in 1977 and has since worked in more than 70 countries to develop and deliver innovative solutions to global health problems. PATH's work includes developing vaccines, diagnostics, and drugs; strengthening health systems; and improving maternal and child health. PATH has partnerships with organizations such as the Bill & Melinda Gates Foundation, the World Health Organization, and the United States Agency for International Development (USAID).