In order to examine the acute effects of outdoor air pollution exposure on daily morbidity and mortality, Hub researchers from Addis Ababa University, Ethiopia; Makerere University, Uganda; University of Nairobi, Kenya; and University of Rwanda, Rwanda established partnerships with local hospitals in each country to collect relevant respiratory and cardiovascular related morbidity and mortality data and link it with the daily levels of PM2.5 reported by the central site outdoor air quality monitors in each capital city. Hub researchers are creating databases of daily morbidity and mortality data and extracting information on sex, age, residence, cause of admission, diagnosis of the diseases after admission, and cause of death. Daily morbidity and mortality data collection began in each country between 2016 and 2019 and has been continuously in progress since initiation.