While antibody tests provide valuable information, they have certain limitations:
1. Timing of the Test: Antibodies may take days to weeks to develop after infection, potentially leading to false-negative results if the test is conducted too early. 2. Cross-Reactivity: Some tests may show cross-reactivity with antibodies from related pathogens, resulting in false-positive results. 3. Duration of Immunity: The presence of antibodies does not always correlate with long-term immunity, and the duration of antibody-mediated protection can vary. 4. Variability in Test Performance: Different tests can vary in sensitivity and specificity, impacting their accuracy.