CD209 and dengue disease: Other dengue illness severity-related polymorphisms include DC-SIGN (CD209), transporters associated with antigen presentation (TAPs), Fc receptor, cytotoxic lymphocyte antigen 4 (CTLA4), mannose binding lectin-2 (MBL-2) and cytokine genes TNF-α, and TGF-β (Acioli-Santos et al. 2008; Perez et al. 2010; Sakuntabhai et al. 2005).