APC	Antigen-Presenting Cell
MHC	Major Histocompatibility Complex
$T{h}_0$	T Helper Cell Type 0
$T{h}_1$	T Helper Cell Type 1
$T{h}_2$	T Helper Cell Type 2
NK	Natural Killer Cell
CTL	Cytotoxic T Lymphocyte
IL	Interleukin
$IFN$	Interferon
$TGF$	Transforming Growth Factor
$NAb$	Neutralizing Antibody
$IgG$	Immunoglobulin G