Table 2. Characteristics of L-CE, L-Der p 1, L- Der p 2, and L-Com vaccines and placebo (L-PBS).

Parameter	Vaccine formulation				Placebo (L-PBS)
	L-CE	L-nDer p 1	L- nDer p 2	L-Com
Average size (μm) (Mean ± SD)	4.566 ± 0.023a	1.999 ± 0.034b	2.016 ± 0.120b	1.025 ± 0.002c	1.93 ± 0.02b
Polydispersity (Mean ± SD)	0.311 ± 0.078a	0.799 ± 0.071b	0.788 ± 0.070 b	0.536 ± 0.020c	1.00 ± 0.00d
Zeta potential (Mean ± SD)	31.33±0.58a	35.40 ± 0.794a	33.60 ± 1.058a	35.00 ± 0.00a	34.3 ± 2.15a
% Entrapment	81.64	88.03	90.56	88.34	NA

NA, not applicable

Entries with different superscripts (a, b, c and d) of the same horizontal line are statistically different (p <0.05)

Percent entrapment was calculated from one aliquot of each vaccine