Table 2. Number of identified bats with definitive RABV test result (N = 2,928), number of rabid bats, and bat RABV positivity by species identified by morphological keys, Washington State—2006–2017.

Species	No. bats tested	No. bats positive	% bats positive (95% CI)	Surveillance % bats positive (number bats tested)
				Passive		Active
				United States 2001–2009†	British Columbia 1971–1985‡	North America 1955–2011±
Species with ≥100 submissions
Big brown bat (Eptesicus fuscus)	819	96	11.7 (9.7–14.1)	4.7 (65,167)	16.8 (197)	2.3 (1,146)
Silver-haired bat (Lasionycteris noctivagans)	239	21	8.8 (5.8–13.1)	8.3 (1,367)	14.6 (41)	1.0 (105)
California myotis (Myotis californicus)	788	16	2.0 (1.2–3.3)	4.5 (552)	6.2 (145)	0 (21)
Western long-eared myotis (Myotis evotis)	193	14	7.3 (4.3–11.9)	6.1 (295)	10.2 (59)	0 (28)
Yuma myotis (Myotis yumanensis)	403	10	2.5 (1.3–4.6)	8.1 (148)	3.0 (33)	0 (61)
Little brown bat (Myotis lucifugus)	380	8	2.1 (1.0–4.2)	2.2 (10,877)	2.7 (300)	0.1 (2,235)
Species with <100 submissions
Hoary bat (Lasiurus cinereus)	15	4	27 (10–52)	35.3% (598)	20.0% (10)	1.1% (182)
Northern long-eared myotis (Myotis septentrionalis)¶	23	4	17 (6–38)	4.5% (202)	0	0
Fringed myotis (Myotis thysanodes)	35	2	6 (0–20)	12.5% (8)	0	0% (21)
Townsend’s big-eared bat (Corynorhinus townsendii)	6	1	17	21.9% (32)	0% (4)	3.9% (51)
Spotted bat (Euderma maculatum)	1	0	0	50% (2)	0	0
Southern red bat (Lasiurus blossevillii)¶	1	0	0	0% (34)	0	NA
Small-footed myotis (Myotis ciliolabrum)	13	0	0 (0–27)	0% (4)	0	NA
Keen’s myotis (Myotis keenii)	3	0	0	3.0% (267)	0% (6)	0
Long-legged myotis (Myotis volans)	8	0	0	30% (10)	0% (2)	0% (23)
Big free-tailed bat (Nyctinomops macrotis)¶	1	0	0	42.9% (21)	0	0% (31)
Pallid bat (Antrozous pallidus)	0	0	0	8.9% (452)	0% (2)	0% (52)
Canyon bat (Parastrellus hesperus)	0	0	0	21.7% (750)	0	0% (70)
All species	2,928	176	6.0 (5.2–6.9)	4.8% (80,786)	8.1% (799)	1.3% (4,026)

^¶Not known to be indigenous to Washington.

Data from Klug et al (2011)^±, Patyk et al (2011)^†, and Prins et al (1988)^‡.