aDepartment of Infectious Diseases, HIV Unit, Hospital Clínic

bInstitut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)

cUniversity of Barcelona, Barcelona, Spain.

Correspondence to Dr Esteban Martínez, HIV Unit, Hospital Clínic-IDIBAPS & University of Barcelona, 08036 Barcelona, Spain. Tel: +34 932275574; fax: +34 934515424; e-mail: [email protected]

Received 27 June, 2022

Accepted 29 June, 2022