TABLE 1.

Mammal infestation prevalence with various tick species, mammal infection prevalence with B. burgdorferi, and mammal-derived tick prevalence of infection with B. burgdorferi at the Pitsfield Banding Station and Van Buren State Park, May to October, 2004-2009a

MammalSourcePitsfieldVan Buren
% Infested (n)% Infected (n)% Infested (n)% Infected (n)
White-footed mouse (Peromyscus leucopus)I. scapularis0 (65)69.3 (179)33.9 (168)
D. variabilis9.2 (65)0 (6)39.1 (179)9.2 (119)
Ear biopsy specimens1.6 (61)30.4 (171)
Eastern chipmunk (Tamias striatus)I. scapularis0 (59)100 (23)46.1 (89)
D. variabilis8.5 (59)0 (3)8.7 (23)
Ear biopsy specimens3.6 (55)34.8 (23)
Eastern cottontail (Sylvilagus floridanus)I. dentatus61.9 (21)3.3 (122)b
H. leporispalustris23.8 (21)0 (9)
D. variabilis4.8 (21)
Ear biopsy specimens20 (20)b
Raccoon (Procyon lotor)D. variabilis33.3 (3)
Ear biopsy specimens0 (3)
Fox squirrel (Sciurus niger)Tick infestation0 (1)
Ear biopsies0 (1)
Meadow jumping mouse (Zapus hudsonius)I. dentatus66.6 (3)0 (1)
Ear biopsy specimens0 (3)
Red squirrel (Tamiasciurus hudsonicus)Tick infestation0 (1)
Ear biopsies0 (1)
Northern short-tailed shrewTick infestation0 (1)
    (Blarina brevicauda)Ear biopsy specimens
Virginia opossum (Didelphis virginiaina)D. variabilis25 (4)
Ear biopsy specimens0 (3)
Woodchuck (Marmota monax)D. variabilis33.3 (3)0 (2)
I. cookei66.6 (3)0 (7)
Ear biopsy specimens0 (3)
  • a Values indicate (i) the percentage of mammals infested by ticks of various species, (ii) the percentage of adults, nymphs, or larval pools of ticks removed from mammals that are infected with B. burgdorferi, and (iii) the percentage of mammals with infected ear biopsy specimens. Each is followed by the sample size (n) in parentheses (not all ticks were tested for infection).

  • b Infection prevalence is considered a minimum due to additional samples that were PCR positive for either B. burgdorferi or B. andersonii but were not sequenced.