Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Causes of Positive Nontreponemal Tests Other Than Syphilis
| Cause | Quality of Data |
|---|---|
| Yaws | High |
| Leprosy | High |
| Autoimmune conditions | High |
| Human immunodeficiency virus | High |
| Hepatitis B virus | Lower |
| Hepatitis C virus | Lower |
| Malaria | Lower |
| Drug use (narcotic, methadone) | Mixed |
For full references, see the text of the paper and Table 1. Data on pregnancy are conflicting.
