Early serodiagnosis of trichinellosis by ELISA using excretory–secretory antigens of Trichinella spiralis adult worms

Table 3 Detection of anti-Trichinella IgG in serum samples of patients with trichinellosis and other parasitoses by ELISA with the three T. spiralis antigen preparations

Sera of patients with	No. of serum samples	ELISA with AW ES antigens		ELISA with AW soluble antigens		ELISA with ML ES antigens
		OD value \( \left(\overline{\mathrm{X}}\pm S\right) \)	No. of positive serum samples (%)	OD value \( \left(\overline{\mathrm{X}}\pm S\right) \)	No. of positive Serum samples (%)	OD value \( \left(\overline{\mathrm{X}}\pm S\right) \)	No. of positive serum samples (%)
Later trichinellosis^a	22	0.52 ± 0.10	22 (100)	0.54 ± 0.05	22 (100)	0.68 ± 0.04	22 (100)
Early trichinellosis^b	20	0.56 ± 0.12	20 (100)	0.62 ± 0.08	20 (100)	0.53 ± 0.10	15 (75.00)
Schistosomiasis	36	0.25 ± 0.06	0 (0)	0.30 ± 0.07	0 (0)	0.33 ± 0.10	4 (20.00)
Paragonimiosis	20	0.29 ± 0.11	2 (10.00)	0.40 ± 0.14	5 (25.00)	0.26 ± 0.14	1 (5.00)
Clonorchiosis	7	0.21 ± 0.04	0 (0)	0.22 ± 0.05	0 (0)	0.30 ± 0.11	1 (14.29)
Cysticercosis	18	0.28 ± 0.10	1 (5.56)	0.29 ± 0.12	2 (11.00)	0.38 ± 0.12	5 (25.00)
Echinococcosis	21	0.27 ± 0.07	0 (0)	0.28 ± 0.07	0 (0)	0.35 ± 0.14	5 (25.00)
Sparganosis	7	0.26 ± 0.04	0 (0)	0.34 ± 0. 04	0 (0)	0.27 ± 0.10	1 (12.5)
Healthy persons	50	0.19 ± 0.03	0 (0)	0.23 ± 0.04	0 (0)	0.21 ± 0.08	0 (0)

Later trichinellosis^a: The sera of later patients with trichinellosis were collected 35 days post-infection
Early trichinellosis^b: The sera of patients with early-stage trichinellosis were collected 19 days post-infection

ISSN: 1756-3305