Analyses of Newly Diagnosed HIV Infection in Hong Kong

The goal of the project is to determine the epidemiologic status and changing patterns of HIV infection in Hong Kong. The main question it aims to answer is: \- what is the molecular pattern and burden of HIV-1 infections over the years

Inclusion Criteria: * adult of age 18 or above, who are * people living with HIV, and * attending the service of an HIV specialist clinic in the public service in Hong Kong Exclusion Criteria: * travelers or visitors who are temporarily staying in Hong Kong * prisoners * patients with mental illnesses who are unable to make informed decision * patients whose HIV diagnosis was made outside Hong Kong and whose treatment have already started.