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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, 36% 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 (36%)
No Co-infection (64%)
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 5,109 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 4,702 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 499 ticks.
49% Positive
51% Negative
Adult Female Lone Star Ticks
Sample size of 149 ticks.
52% Positive
48% Negative
Pathogenic Prevalence in Maine
The bars below show the positive/negative prevalence ratio of selected pathogens we test for.
These pathogens were observed in ticks from Maine.
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 291 ticks.
40% Positive
60% Negative
Borrelia burgdorferi
(American dog tick) associated with Lyme disease
Sample size of 48 ticks.
Warning: Low Sample Size
Anaplasma phagocytophilum
associated with anaplasmosis
Sample size of 246 ticks.
17% Positive
83% Negative
Babesia microti
associated with babesiosis
Sample size of 225 ticks.
Bartonella spp.
associated with bartonellosis
Sample size of 101 ticks.
20% Positive
80% Negative
Ehrlichia chaffeensis
associated with ehrlichiosis
Sample size of 36 ticks.
Warning: Low Sample Size
Rickettsia spp.
associated with Rocky Mountain spotted fever
Sample size of 30 ticks.
Warning: Low Sample Size
13% Positive
87% Negative
Francisella tularensis
associated with tularemia
Sample size of 32 ticks.
Warning: Low Sample Size
Borrelia miyamotoi
associated with B. miyamotoi
Sample size of 96 ticks.
Babesia spp.
associated with babesiosis
Sample size of 53 ticks.
Mycoplasma spp.
associated with Mycoplasma spp.
Sample size of 68 ticks.
Borrelia spp.
associated with Borrelia spp.
Sample size of 50 ticks.
36% Positive
64% Negative
Powassan virus Lineage II
associated with Deer tick virus
Sample size of 41 ticks.
Warning: Low Sample Size
Borrelia mayonii
associated with Lyme disease
Sample size of 75 ticks.
0% Positive
100% Negative
Babesia duncani
associated with babesiosis
Sample size of 37 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Ehrlichia muris-like
associated with ehrlichiosis
Sample size of 37 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Pathogen and co-infected tick prevalence data is © TickCheck, and is derived from our tick testing results and laboratory research.