CCR5 and infection: Secondly, up-regulation of tissue homing markers α4β7 (Juno et al., 2019b) and chemokine receptors (CXCR6+, CCR2+, CCR5+, CCR6+, and CCR9+) and the identification of MAIT cells in affected tissues demonstrate that they can migrate into tissues during infection (D’Souza et al., 2018), although recovery of MAIT cell numbers in blood is not reproducibly seen upon viral suppression with Antiretroviral Therapy (ART).