Table 2.

Detection of antihantavirus antibodies and virus RNA in A. peninsulae (N = 29) and A. agrarius (N = 47)

Number	IFA antibody titer*				RT-PCR	Virus isolation
	AMRV H5	HTNV 76-118	SEOV SR-11	PUUV Sotkamo
A. peninsulae
167	256	512	< 16	< 16	+	N.D.†
172‡	256	256	< 16	< 16	+	–
186	256	512	< 16	< 16	+	N.D.
199	512	128	< 16	< 16	+	N.D.
209	1,024	1,024	128	< 16	+	+
161	512	512	< 16	< 16	–	N.D.
170	512	128	256	< 16	–	N.D.
189	1,024	128	128	< 16	–	N.D.
190	32	16	< 16	< 16	–	N.D.
191	1,024	512	512	< 16	–	N.D.
166	< 16	< 16	< 16	< 16	+	N.D.
Others (N = 18)	< 16	< 16	< 16	< 16	–	N.D.
A. agrarius
56	> 2,048	> 2,048	128	< 16	+	+
57	> 2,048	> 2,048	512	< 16	+	+
61	1,024	1,024	256	< 16	+	+
65	> 2,048	> 2,048	> 2,048	< 16	+	+
54	> 2,048	> 2,048	256	< 16	–	N.D.
Others (N = 42)	< 16	< 16	< 16	< 16	–	N.D.

^*IFA antibody titer was expressed as a reciprocal of the highest dilution that showed specific fluorescence.

^†N.D. = not done.

^‡Rodent samples in bold were used for virus isolation.