The Kala Azar IgG/IgM Card is a rapid diagnostic test used to detect antibodies in the blood. It is primarily employed to diagnose Kala-azar, a severe form of leishmaniasis. Leishmaniasis is a vector-borne disease transmitted through sandfly bites. The IgG component of the test detects long-term antibodies produced in response to Leishmania infection. The IgM component identifies recent or active infections. The test is based on immunochromatography, which makes it simple and quick. Results are typically available within 15-20 minutes. A positive IgG result suggests a past or ongoing infection, while a positive IgM result points to an acute infection. A dual-positive result for both IgG and IgM may indicate a mixed or co-infection. The Kala Azar IgG/IgM Card is especially valuable in endemic regions.