in a survey of 283 deliveries in swaziland , active syphilis ( positive results in the treponema pallidum haemagglutination assay ( tpha ) and the rapid plasma reagin ( rpr ) test ) was found in 37 ( 13.1 % ) and possibly active infection ( positive tpha but negative rpr test results ) in a further 87 ( 30.7 % ) .
C0039128
syphilis
C0009450
infection