Table 1.

Results of abattoir workers' sera for orientiae IgG–specific antibodies by ELISA, IFA, and western blot assays

Participant ID	Time of sample collection	ELISA titer	IFA (1:128)	Western blot (1:100)
				Kpr47b	Kpr56
12	Baseline	< 100	−	−	−
12	Week 4	400	+	±	+
37	Baseline	400	+	±	+
58	Baseline	100	+	+	ND*
40†	Baseline	< 100	−	−	−

ELISA = enzyme-linked immunosorbent assay; IFA = immunofluorescence assay.

^*Not done (ND) because the sample was already depleted.

^†An ELISA-negative serum sample from an abattoir worker.