Both studies showed that CD4 count was the only predictor for developing active coccidioidomycosis; factors such as a history of coccidioidomycosis and duration of residence in an endemic area or age, sex, race, ethnicity, plasma HIV RNA level, or receipt of HAART were not associated with increased risk for coccidioidomycosis (11, 47, 67). The gene discussed is CD4; the disease is coccidioidomycosis.