Another method for the detection of rabies virus antigen from postmortem samples is a recently developed rapid immunodiag- www.plosntds.org nostic test (RIDT) based on the principles of immunochromatography [13] . The immunochromatographic lateral flow strip test is a one-step test that facilitates low-cost, rapid identification of various analytes including viruses [14] . Briefly, suspect material is subjected to a test device similar to a lateral flow device. Conjugated detector antibodies attached to two different zones on a membrane indicate the presence of viral antigen. Preliminary validation studies with a limited number of samples showed that the RIDT might have great potential as a useful method for rabies diagnosis without the need for laboratory equipment [13] . However, thorough validation including various circulating variants of RABV and other lyssaviruses is still needed before this test could be relied upon and be used as an alternative for the gold standard FAT.