This assay detects IgG and IgM antibodies to Bartonella henselae and Bartonella quintana, key bacteria linked to illnesses like cat scratch disease, trench fever, and chronic vascular infections.
A positive IgM titer (> 1:20) suggests a current or recent infection. A positive IgG titer (> 1:128) indicates past or active exposure; rising IgG levels over time suggest ongoing infection.
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