TABLE 5.

Birds with B. burgdorferi sensu stricto spirochete-infected subadult ticks

Bird species	No. of larvae	No. of nymphs	No. (%) of infected larvae	No. (%) of infected nymphs	ORa	95% CI	No. (%) of infected ticks	n-I	No. (%) of birds with infected ticks
Blackcap (Sylvia atricapilla)	215	60	0 (0)	0 (0)			0 (0)		0 (0)
European robin (Erithacus rubecula)	226	55	0 (0)	1 (1.8)			1 (0.4)	1.0	1 (0.5)
Great tit (Parus major)	135	33	0 (0)	0 (0)			0 (0)		0 (0)
Dunnock (Prunella modularis)	252	167	0 (0)	1 (0.6)			1 (0.2)	1.0	1 (1.8)
Song thrush (Turdus philomelos)	147	112	0 (0)	0 (0)			0 (0)		0 (0)
Eurasian blackbird (Turdus merula)	384	189	0 (0)	2 (1.1)			2 (0.3)		2 (6.5)
Winter wren (Troglodytes troglodytes)	138	7	2 (1.4)	0 (0)			2 (1.4)	0.91	1 (3.0)
Whitethroat (Sylvia communis)	18	11	0 (0)	0 (0)			0 (0)		0 (0)
Treecreeper (Certhia familiaris)	4	6	0 (0)	0 (0)			0 (0)		0 (0)
Grasshopper warbler (Locustella naevia)	5	5	0 (0)	0 (0)			0 (0)		0 (0)
Gray wagtail (Motacilla cinerea)	1	9	0 (0)	0 (0)			0 (0)		0 (0)
Total	1,547	676	2 (0.1)	4 (0.6)	4.6	0.8-25.2	6 (0.3)		5 (0.5)

^aOR for infection in nymphs compared to infection in larvae.