A 53-year-old member asked:
How long does it take for syphilis to be detectable in a blood test?
1 doctor answer
Dr. James Ferguson answered
45 years experience in Pediatrics
Weeks to months: Testing for syphillis relies on both non-specific tests that can be falsley +or - and more specific germ tests as backup. A + or rising level of a screening test is confirmed by a germ test. The most specific test is finding the germ in material from a lesion. Since transmission ~30% per contact with an infected source, a single dose of penicillin is often given as early as exposure is suspected.
Answered on Aug 22, 2018
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