Table. Description of patients with cat-scratch disease and results of IFA and rPCR of blood specimens, Japan, April 2009–May 2014*.

Patient no.	Patient age, y/sex	Fever	Regional lymphadenopathy	History of contact with animal	IFA titer		Cp of rPCR, mean ± SD	Complication
					IgM	IgG
1	15/M	+	+	Cat, dog	40	256	NA
2	4/F	+	–	Cat	20	512	36.82 ± 0.57	FUO
3	6/F	+	–	Dog	<10	64	33.93 ± 0.39	FUO
4	13/M	+	+	Cat	<10	256	35.98 ± 0.69
5	14/F	+	+	Cat, dog	<10	256	34.29 ± 0.43
6	8/M	+	+	Dog	<10	<64	35.35 ± 0.33
7	10/M	+	+	Cat	20	256	NA
8	8/F	+	+	Dog	<10	<64	37.18 ± 0.36
9	10/M	+	+	Cat	20	256	NA
10	7/F	+	+	Cat	10	<64	35.64 ± 0.27
11	2/M	+	+	Cat	40	256	NA
12	15/M	+	–	Cat, dog	>80	512	NA	Neuroretinitis
13	6/F	+	+	Cat	<10	256	37.29 ± 0.15
14	10/M	+	+	Cat	<10	256	NA
15	12/F	+	+	Cat, dog	<10	512	33.55 ± 0.33
16	13/M	+	–	Cat	<10	512	NA	FUO
17	9/F	+	+	Cat	<10	<64	34.84 ± 0.47
18	4/M	+	+	Cat	20	512	NA
19	14/F	+	–	Dog, rabbit	80	512	NA	Neuroretinitis
20	56/F	+	–	Cat	<10	256	NA	Neuroretinitis
21	35/F	+	+	Cat	40	1,024	37.19 ± 0.59
22	7/M	+	+	Cat, dog	<10	512	NA

*Blank cells indicate no complications. Cp, crossing point value; FUO, fever of unknown origin; IFA, indirect fluorescent antibody test; NA, no amplification by rPCR; rPCR, real-time PCR; +, positive; –, negative.