Should persons using PrEP receive testing for recent infection?

Yes. PrEP may slow maturation of antibodies, which can delay identification as HIV-positive on routine diagnostic tests and result in infection classified as recent for a longer time than the mean duration of recent infection (about 6 months). These events (breakthrough infection while on PrEP) are likely to be rare. Persons using PrEP who are newly diagnosed with HIV, are eligible for recency testing and inclusion in recent infection surveillance