Biologically false-positive serologic tests for syphilis due to smallpox vaccination.
D005189:False Positive Reactions; D006801:Humans; D008722:Methods; D012900:Smallpox Vaccine / Q000009:adverse effects*; D013588:Syphilis Serodiagnosis; D014611:Vaccination / Q000009:adverse effects*
D012900:Smallpox Vaccine