TABLE 1.

Description of patients with scrub typhus meeting the scrub typhus infection criteria

CRF no.d	Days of fever	Sexa	Age (yr)	Admission InBios IgM OD	Admission IgM IFA	Convalescent IgM IFA	Admission IgM IFA ≥12,800	In vitro isolation positive	PCR positive	IgM IFA ≥4-fold increase
4	5	M	48	4.54	≥25,600	≥25,600	X
6	10	M	44	4.82	≥25,600	≥25,600	X
8		F	44	4.39	≥25,600	≥25,600	X
22	10	F	35	4.16	12,800	NS	X		X
27	8	F	40	4.18	≥25,600	≥25,600	X	X	X
40	8	F	81	0.06	50	200				X
45	3	M	84	0.06	50	100		X
57	3	M	71	0.06	≥25,600	50	X		X
58	5	F	34	3.83	≥25,600	1,600	X	X	X
60	7	F	38	1.10	≥25,600	≥25,600	X		X
64	11	F	54	4.28	12,800	NSb	X
67	5	M	45	0.10	100	400				X
75	4	M	46	0.10	50	50		X
76	7	M	39	4.70	12,800	NS	X
79	8	M	31	4.45	≥25,600	≥25,600	X	X	X
93	7	F	43	4.73	≥25,600	≥25,600	X		X
97	7	M	15	4.44	100	≥25,600			X	X
101	4	M	NAc	0.62	400	12,800				X
103	5	M	44	4.14	≥25,600	≥25,600	X		X
109	4	M	42	0.15	100	400				X
113	4	M	32	0.12	50	200				X
116	10	M	20	4.44	≥25,600	≥25,600	X		X
117	10	M	18	5.17	≥25,600	≥25,600	X
122	5	M	44	4.59	12,800	NS	X		X
123	5	M	44	0.17	50	400				X
124	2	M	56	0.14	50	400				X
125	3	M	49	0.09	50	200				X
127	7	M	36	0.78	400	1,600			X	X
129	7	F	55	0.25	50	200				X
130	4	M	29	0.30	200	800				X
132	1	M	52	0.28	50	800				X
136	5	M	29	0.52	200	≥25,600		X	X	X
145	2	M	41	0.15	50	800				X
146	6	M	40	0.09	50	1,600				X
147	6	M	38	0.11	100	400				X
148	8	M	49	3.04	3,200	≥25,600			X	X
158	5	F	57	3.75	≥25,600	≥25,600	X	X	X
162	7	M	32	0.96	800	≥25,600			X
167	2	M	58	0.16	50	200				X
168	6	M	51	0.09	50	800				X
170	7	F	58	4.49	12,800	3,200	X		X
171	4	F	41	4.77	6,400	≥25,600			X	X
172	10	F	26	4.48	≥25,600	≥25,600	X		X
Total	Median, 5.5	M, 69.8%; F, 30.2%	Median, 43.5				19	7	19	21

^aM, male; F, female.

^bNS, no serum.

^cNA, not available.

^dCRF no., Chiangrai fever study number.