HDGFL2 and malaria: Given all human malaria species, bar Plasmodium knowlesi, are sympatric in PNG, combination RDTs detecting both P. falciparum-histidine-rich-protein-2 (HRP-2) and the genus-specific malaria antigen lactate dehydrogenase (pLDH) are most appropriate, and were shown to be appropriate for malaria treatment amongst febrile children in PNG [25].