CD14 and pulmonary arterial hypertension: At 6 months post-infection, SIV-PAH+ animals had higher numbers of peripheral blood CD14dimCD16+ non-classical monocytes (Fig. 4a, P = 0.06) and CD14+CCR7−CD163−CD206+ BALF macrophages (Fig. 4c, P = 0.04) compared to SIV-PAH− controls.