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Our Tick Testing Data
Each tick submitted for testing contributes to the research being conducted here at TickCheck. By keeping records of all the results generated, we have been able to gain valuable insights into disease prevalence and co-infection rates. The comprehensive testing panel has been especially helpful in contributing to this research by ensuring all diseases and coinfections are accounted for when examining a tick. Our current research shows that 53% of tick tested are infected with at least one pathogen, 37% are co-infected with two or more, 11% carry three or more, and 4% of the ticks tested carry four or more.
Infection Visualization by Tick Species
All Ticks Tested
53% Positive for Infection
Negative (47%)
28% Positive for Infection
Negative (72%)
17% Positive for Infection
Negative (83%)
5% Positive for Infection
Negative (95%)
Coinfection Visualization
4+ Coinfection (4%)
3+ Coinfection (11%)
2+ Coinfection (37%)
No Co-infection (63%)
Pathogenic Prevalence by Species & Life Stage
Generally, nymphal ticks will have fewer pathogen because they've had fewer opportunities to feed. Our data shows this as well.
Infection Rate for Borrelia burgdorferi between Adult Female and Nymphal Deer Ticks
Nymphal Deer Ticks
Sample size of 1,924 ticks.
24% Positive
76% Negative
Adult Female Deer Ticks
Sample size of 5,087 ticks.
37% Positive
63% Negative
Infection Rate for Anaplasma phagocytophilum between Adult Female and Nymphal Deer Ticks
Nymphal Deer Ticks
Sample size of 1,603 ticks.
Adult Female Deer Ticks
Sample size of 4,680 ticks.
11% Positive
89% Negative
Infection Rate for Rickettsia amblyommii between Adult Female and Nymphal Lone Star Ticks
Nymphal Lone Star Ticks
Sample size of 498 ticks.
49% Positive
51% Negative
Adult Female Lone Star Ticks
Sample size of 148 ticks.
51% Positive
49% Negative
Pathogenic Prevalence in Oregon
The bars below show the positive/negative prevalence ratio of selected pathogens we test for.
These pathogens were observed in ticks from Oregon.
Data set includes tests performed since TickCheck's founding in 2014 and is updated in real time.
Borrelia burgdorferi
(deer tick) associated with Lyme disease
Sample size of 28 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Borrelia burgdorferi
(western blacklegged tick) associated with Lyme disease
Sample size of 66 ticks.
12% Positive
88% Negative
Anaplasma phagocytophilum
associated with anaplasmosis
Sample size of 96 ticks.
Babesia microti
associated with babesiosis
Sample size of 75 ticks.
Bartonella spp.
associated with bartonellosis
Sample size of 45 ticks.
Warning: Low Sample Size
11% Positive
89% Negative
Ehrlichia chaffeensis
associated with ehrlichiosis
Sample size of 44 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Francisella tularensis
associated with tularemia
Sample size of 26 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Borrelia miyamotoi
associated with B. miyamotoi
Sample size of 45 ticks.
Warning: Low Sample Size
Mycoplasma spp.
associated with Mycoplasma spp.
Sample size of 33 ticks.
Warning: Low Sample Size
Borrelia mayonii
associated with Lyme disease
Sample size of 29 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Rickettsia rickettsii
associated with Rocky Mountain spotted fever
Sample size of 31 ticks.
Warning: Low Sample Size
16% Positive
84% Negative
Pathogen and co-infected tick prevalence data is © TickCheck, and is derived from our tick testing results and laboratory research.