TABLE 2.

ospC allele frequency in B.burgdorferi DNA amplified from I. pacificus nymphs collected in Mendocino County in 2004

ospC allele	No. of ticks with allele		ospC allele frequency in tick population (%)
	−MIa	+MIb
H3	51	53	24.0
E3	32	38	17.2
H	24	27	12.2
A	23	24	10.9
F	21	21	9.5
D	17	18	8.1
G	17	18	8.1
B	8	10	4.5
M (nt 348)	5	6	2.7
I3	5	5	2.3
B (nt 59)	1	1	0.5
T	1	1	0.5
Total	205	222	100.0

^a−MI, not including mixed infections.

^b+MI, including mixed infections.