 
<prompt> Trends in malaria prevalence among children | Percentage of children age 6-59 months who tested positive for malaria by microscopy | (2010 NMIS, 42) (2015 NMIS, 27) (2018 NDHS, 23) <response> The prevalence of malaria (according to microscopy) among children age 6-59 months declined from 42% in 2010 to 23% in 2018, with an average decline of 2.3% per annum.  