ALG	Alginate
APCs	Antigen presenting cells
BCG	Bacillus Calmette-Guérin
CFU	Colony-forming unit
CS	Chitosan
DMSO	Dimethylsulfoxide
E.E.	Encapsulation efficiency
FT-IR	Fourier transform infrared spectroscopy
G	Guluronate
GFP	Green fluorescence protein
HMW	High molecular weight
HV	High viscosity
LMW	Low molecular weight
LV	Low viscosity
M	Mannuronate
MMW	Medium molecular weight
MV	Medium viscosity
MTT	3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide
NALT	Nasal associated lymphoid tissue
ND	Not determined
OADC	Oleic acid, albumin, dextrose and catalase supplement
OD	Optical density
PBS	Phosphate-buffered saline solution
PLGA	Poly(d,l-lactide-co-glycolide)
PLA	Poly(l-lactide)
PMA	Phorbol myristate acetate
rBCG	Recombinant BCG
THP-1	human monocyte cell line
TPP	Tripolyphosphate
US	Ultrasonication
UT	Ultraturrax
YP	Yield of production