Fig. 7From: Digitally managed larviciding as a cost-effective intervention for urban malaria: operational lessons from a pilot in São Tomé and Príncipe guided by the Zzapp systemSampling of water bodies by the QA team. Note that the baseline positivity (before treatment) for larvae is 19.3% and for pupae is 9.2%. Even after 17 days, the treatment has some impact on water body positivity for Anopheles mosquitoesBack to article page