Understanding Syphilis: Serology Tests TPHA and VDRL Serology TPHA VDRL: How to Detect Syphilis? Serology TPHA VDRL is a method to detect syphilis, an infection that can be transmitted through sexual contact. Serology is a method to check for diseases by examining blood to see if there are signs of infection. This article provides important … Continue reading The Importance of TPHA VDRL Serology in Detecting Syphilis