CD209 and infection: Additionally, anti-EDII-cEDIII Ab reduced infection by DENV1, 2, 3, and 4 in U937-DC-SIGN cells by 66.8, 65.6, 74.1, and 79%, respectively, whereas anti-cEDIII Ab reduced infection by 62.4, 28.1, 65.3, and 65.5%, respectively.