Is a weak positive TRUST result infectious?

Apr 02, 2023 Source: Cainiu Health
Dr. Yang Shuwen
Introduction
A weakly positive TRUST test generally indicates infectivity. TRUST is commonly used to detect the presence of syphilis in patients. A weakly positive result for Treponema pallidum antibody may be caused by infection with Treponema pallidum, or may indicate an early-stage syphilis reaction, suggesting that the individual is potentially infectious.

TRUST weakly positive results are generally infectious. The specific analysis is as follows:

TRUST is commonly used to test whether syphilis is present in a patient's body. A weakly positive result for Treponema pallidum antibody may be caused by infection with Treponema pallidum, or it may indicate an early-stage syphilis reaction, suggesting that there is a certain degree of infectivity. Since Treponema pallidum undergoes extensive metabolism and replication in the body and has self-replicating capabilities, once it comes into contact with another person, it can transmit the disease. The reference value for TRUST titer testing is 0; any detectable value usually indicates possible syphilis infection. Therefore, a TRUST weakly positive result is also considered infectious.

In addition, the blood of patients with syphilis contains Treponema pallidum, so blood donation should be avoided to prevent transmission to others. In daily life, maintain a light diet, avoid spicy and irritating foods, follow a regular sleep schedule, ensure adequate rest, balance work and rest appropriately, and develop healthy lifestyle habits.