Table 1. Attachment rates of R. sanguineus larvae and nymphs fed on mice skin by artificial membrane feeding system.

Ticks fed on mice skin	Larval stage		Nymphal stage
	Experimental group (400)	Control group (200)	Experimental group (60)	Control group (40)
No. of engorged ticks (%)	172 (43%) *	68 (34%) *	-	-
No. of semi-engorged ticks (%)	166 (41.5%)	95 (47.5%)	34 (56.7%)	28 (70%)
Others (%)	62 (15.5%)	37 (18.5%)	26 (43.3%)	12 (30%)
Attachment rate	338 (84.5%)	163 (81.5%)	34 (56.7%)	28 (70%)

Data were analyzed statistically to compare results between ticks fed on B. henselae-infected blood (experimental group) and non-infected blood (control group) by Fisher’s exact test (* p<0.05).

Others: unfed, inactive, or died ticks.