Identifying pregnant women's human immunodeficiency virus (HIV) infect
ion status provides them with the opportunity to seek appropriate trea
tment and to take measures to prevent vertical and horizontal transmis
sion. Prenatal screening program options include targeting at-risk wom
en, testing on a voluntary basis, or mandating prenatal HIV screening.
When examining these options, the number of cases identified, program
matic costs, long term health care costs, and legal implications must
all be considered. Research indicates that targeting at-risk women mis
ses a significant percentage of seropositive women, although programma
tic costs may be lower. It is difficult to ascertain the difference be
tween voluntary and mandatory programs with respect to the number of c
ases identified and treated. As a result, long-term savings are diffic
ult to calculate. Mandatory programs would have the greatest direct co
sts and place the greatest burden on the woman's constitutional rights
. By making HIV counseling and testing a routine component of prenatal
care, voluntary programs could achieve the benefits of prenatal HIV s
creening without violating the woman's civil liberties.