TABLE 4.

IgM anti-HEV levels of paired sera from the Sargodha epidemic of 1987^a

Sample	Group 1 (March-April 1987)			Group 2 (December 1988)
	Sandwich EIA (previously published)b	Class capture EIA (OD)c		Sandwich EIA (previously published)b	Class capture EIA (OD)c
		PBS treated	DTT treated		PBS treated	DTT treated
137d	+	0.914e	0.081e	−	0.518	0.074
151d	+	1.299f	0.086f	−	0.463	0.146
79d	+	1.553f	0.138f	−	0.461	0.069
143	+	1.309e	0.178e	−	0.400	0.106
135	+	1.620f	0.089f	−	0.340	0.086
84	+	0.882f	0.076f	−	0.335	0.212
141	+	1.444e	0.107e	−	0.323	0.084
187	+	1.285e	0.137e	−	0.323	0.164
138	+	1.203f	0.092f	−	0.317	0.150
147	+	1.436e	0.151e	−	0.310	0.139
136	+	1.247e	0.083e	−	0.305	0.153
69	+	1.348	0.170	−	0.282	0.150
152	+	1.679e	0.175e	−	0.275	0.088
159	+	1.508f	0.088f	−	0.239	0.146
153	+	1.640f	0.083f	−	0.170	0.126

^aNumbers in boldface indicate that both samples of the pair were positive for IgM anti-HEV.

^bFrom reference 6.

^cPBS-treated and DTT-treated sera were tested on the same plate.

^dIgG anti-HEV OD values for group 2 sera 137, 151, and 79 were 2.192, 2.480, and 2.577, respectively.

^eThe sample was diluted 1:100 before testing (final dilution of 1:10,000).

^fThe sample was diluted 1:10 before testing (final dilution of 1:1,000).