Manila Mayor Isko Moreno clarified that the city's mass testing sites use serology tests, not rapid tests, following concerns about the accuracy of the latter.
He explained that Manila has ceased using strip-based rapid tests due to potential false positives and negatives, opting instead for machine-assisted serology tests.
The serology tests employed by Manila have a specificity rate of 99.6% and an accuracy rate of 100% in detecting Immunoglobulin G (IgG).
Moreno stated that these tests help identify individuals who have developed antibodies and are effective for contact tracing and surveillance.
He also mentioned that the city continues to follow the Department of Health's guidelines to use swab tests.
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