In Costa Rica, malaria parasite removal via treatment shift and focalized mass drug administration (MDA) largely decreased malaria transmission between 2006 and 2009, and led to malaria elimination from 2013 to 2015. These results can help to shape a regional strategy for malaria elimination in Mesoamerica and México.
Keywords: 7-day treatment; Plasmodium vivax; breakpoint; mass drug administration; primaquine; regime shift.
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