 Duration: Each subject who agrees to linkage will receive ALERT follow-up until successful linkage or 60 days following enrollment for linkage to care or 90 days following enrollment for linkage to PrEP, whichever comes first. The duration of the 593 project will be for 3.5 years or until all subjects have been enrolled and successfully linked, or 60 days pass for linkage to care or 90 days for linkage to PrEP. 