A Positive Syphilis Screening Test That Isn’t Syphilis: The Biological False Positive

A reactive VDRL or RPR in someone with no risk and no symptoms is often not syphilis at all. Dr. Soarawee Weerasopone explains what a biological false positive is, the one cause that matters more than the rest, and why a persistent one should never simply be dismissed.
Syphilis Treatment: How It Is Cured, and How You Know It Worked

Syphilis is cured by an injection that has not changed in seventy years. What confuses almost everyone is what happens to the blood test afterwards. Dr. Soarawee Weerasopone explains why a positive test does not mean failed treatment, and the symptoms that mean the infection has reached the nerves or the eye.
Spiegazione degli esami del sangue per la sifilide: perché ce ne sono due tipi

Un test della sifilide positivo non significa sempre un'infezione attiva — e uno dei due test rimane positivo per il resto della vita anche dopo essere guariti. Il dottor Soarawee Weerasopone, urologo del Bangkok Hospital, spiega cosa misura ciascun test e come leggerli insieme.
