[Study on the transmission of drug resistant human immunodeficiency virus-1 in Henan province].

Objective: To survey the prevalence of HIV-1 drug resistance after five years antiretroviral treatment in Henan province.

Methods: Through the cross-sectional study, serum specimens of 69 HIV infected individuals that were 2 to 25 years old who were newly diagnosed according the WHO standard from November 2007 to August 2008 and did not receive antiretroviral treatment (ART) were collected. HIV-1 pol genetic mutations associated with drug resistance were identified with RT-PCR and interpreted.