A new over-the-counter syphilis antibody test has received marketing authorization from the Food and Drug Administration (FDA). Branded as First To Know, the at-home screening test requires just a drop of blood and provides results within about 15 minutes, offering an early indication of a possible syphilis infection. However, any positive result must be further confirmed with laboratory testing. In a clinical trial involving 1,270 participants, the test accurately identified 99.5% of negative cases and …
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