Linkage to care refers to having accessed medical care for HIV infection after being diagnosed. This is a crucial early step in successful HIV treatment because this enables a person with HIV infection to see a medical provider who can check the person’s health and prescribe the antiretroviral therapy needed for viral suppression. The more quickly individuals with HIV can be linked into medical care after diagnosis, the greater the impact medical care can have in keeping them healthy and in limiting the spread of HIV, through viral suppression.