CD40LG and brucellosis: Brucellosis seroprevalence was also assessed in Kenya, after the report of two patients with HIV and a serology positive for Brucella: among 100 patients, 65 of them being PLWH, 21 patients had IgG-serology for Brucella, 6 of them had IgM only, and 8 of them had both IgM and IgG, showing a rather significant prevalence of antibodies for Brucella [131].