Transmission of human immunodeficiency virus type 1 nevirapine resistance mutation K103N from a treatment-naive mother to her child.

Vertical infection of drug-resistant human immunodeficiency virus type 1 (HIV-1) has occasionally been reported in children from pretreated mothers with HIV-1 infection. In this report, a treatment-naive mother transmitted HIV-1 resistance mutation K103N against nevirapine to her child.