Abstract: In some embodiments, an immunoassay device for detection of recent malaria infection includes: a sample pad positioned adjacent to a first end of a conjugate pad, wherein either the sample pad or the first end of the conjugate pad include a detection complex able to bind anti-ETRAMP5 antibodies; wherein a second end of the conjugate pad includes one or more areas impregnated with a construct protein including ETRAMP5 protein fragments. In some embodiments, the detection complex for anti-ETRAMP5 antibodies includes a capture particle complexed with anti-IgG antibodies. In some embodiments, the detection complex for anti-ETRAMP5 antibodies includes a detection particle complexed with a complex molecule including ETRAMP5 protein fragments.