This study examined how activating the behavioral immune system (BEH) influences the biological immune system (BIO). Participants were randomly assigned to complete questionnaires about disgust, a computer task with sick faces, and saliva samples in different orders. Results found that sick faces drew unconscious attention better than chance. There were no group differences in disgust responses. However, those who viewed sick faces before questionnaires reported higher moral judgments of disgust. This suggests a more sensitive measure may be needed to understand how the BEH influences the BIO and that findings have social and medical implications.