Azole resistance and cyp51A mutation screening in Aspergillus fumigatus in Mexico.

Background: Fungicide exposure in the environment has driven the emergence of azole-resistant Aspergillus fumigatus worldwide. A screening test allows identification of resistant isolates.

Objectives: We screened clinical samples for azole-resistant Aspergillus through azole-containing agar plates and identified mutations in the cyp51A gene of A.