High burden of transmitted HIV-1 drug resistance in Italian patients carrying F1 subtype

Department of Clinical Science ‘L. Sacco’, Section of Infectious Diseases and Immunopathology, University of Milan, Milan, Italy; Division of Infectious Diseases, Siena University Hospital, Siena, Italy; Laboratory of Microbiology, ‘L. Sacco’ Hospital, Milan, Italy; Second Division of Infectious Diseases, ‘L. Sacco’ Hospital, Milan, Italy; Division of Infectious Diseases, Careggi Hospital, Florence, Italy; Section of Microbiology, Department of Biomedical Science, University ‘Politecnica delle Marche’, Ancona, Italy; Division of Infectious Diseases and Hepatology, Siena University Hospital, Siena, Italy; Department of Infectious Diseases, Cremona Hospital, Cremona, Italy