MDA aims to reduce the prevalence and incidence of diseases by treating a large proportion of the population at the same time. This approach can interrupt the transmission of pathogens, reduce the reservoir of infection, and protect the untreated individuals through a phenomenon known as herd immunity. The primary targets of MDA are neglected tropical diseases (NTDs) such as lymphatic filariasis, onchocerciasis, and soil-transmitted helminths.
