Fig. 2
From: Malaria and the incidence of COVID-19 in Africa: an ecological study
Distribution of the cumulative incidence of COVID-19 in African countries with different prevalence of malaria stratified by the human development index. The curve was smothed and drawn based on the predicted values derived from the negative binomial regression (Table 2). The shaded area represnts the 95% confidence interval of the curve. The vertical gray dashed line corresponds to an arbitrary chosen malaria prevalence of 3%. *HDI: human development index