COVID-19 Mortality and Environmental Factors During Wet and Dry Seasons in West and Southern Africa

Abstract

Sub-Saharan Africa has been the last continent to experience a significant number of cases in the novel Coronavirus (COVID-19). Several studies have suggested that air pollution is related to COVID-19 mortality; poor air quality has been linked to cardiovascular, cerebrovascular, and respiratory disease, which are considered co-morbidities linked to COVID-19 deaths. We examine potential connections between country-wide COVID-19 mortality and environmental conditions in Senegal, Cabo Verde, Nigeria, Cote D'Ivoire, and Angola. We analyze PM2.5 concentrations from cost-effective in situ measurements, aerosol optical depth (AOD), and fire count from spaceborne platforms during the dry season when biomass burning aerosols are present in Southern Africa. In addition, we examine the COVID-19 mortality during the wet season using space-borne rain measurements to determine potential linkages which might occur as a result of time spent indoors and concurrent cases of flu, waterborne and vector-borne diseases in West Africa. Results are presented from March through November of 2020. The current dry season has the potential to increase the severity of COVID-19 cases because of expected poor air quality.