PBMCs from 10 uninfected malaria-exposed controls co-cultured with nRBC, P. vivax, and P. falciparum antigens showed a more robust response to P. vivax antigens (2951±452 CPM) than P. falciparum antigen (1963±591 CPM) compared to the activation of PBMCs that was observed using anti-OKT (4968±606 CPM). Here, OAT is linked to malaria.