Publicity about human immunodeficiency virus (HIV) infection in athlet
es has focused attention on the potential for transmission of blood-bo
rne pathogens during sports and athletic competitions. Existing inform
ation suggests that the potential risk for such transmission is extrem
ely low and that the principal risks athletes have for acquiring HIV a
nd hepatitis B virus are related to off-the-field activities. Therefor
e, efforts to prevent transmission of blood-borne pathogens among athl
etes should emphasize prevention in off-the-field settings. We summari
ze technical and other information about this issue, and provide recom
mendations for the education of sports participants, for infection con
trol in athletic settings, and for training of coaches and officials.