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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 42% of tick tested are infected with at least one pathogen, 30% are co-infected with two or more, 8% carry three or more, and 3% of the ticks tested carry four or more.
Infection Visualization by Tick Species
All Ticks Tested
42% Positive for Infection
Negative (58%)
21% Positive for Infection
Negative (79%)
16% Positive for Infection
Negative (84%)
3% Positive for Infection
Negative (97%)
Coinfection Visualization
4+ Coinfection (3%)
3+ Coinfection (8%)
2+ Coinfection (30%)
No Co-infection (70%)
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 3,826 ticks.
23% Positive
77% Negative
Adult Female Deer Ticks
Sample size of 9,387 ticks.
36% Positive
64% Negative
Infection Rate for Anaplasma phagocytophilum between Adult Female and Nymphal Deer Ticks
Nymphal Deer Ticks
Sample size of 3,502 ticks.
Adult Female Deer Ticks
Sample size of 8,976 ticks.
10% Positive
90% Negative
Infection Rate for Rickettsia amblyommii between Adult Female and Nymphal Lone Star Ticks
Nymphal Lone Star Ticks
Sample size of 1,084 ticks.
49% Positive
51% Negative
Adult Female Lone Star Ticks
Sample size of 385 ticks.
50% Positive
50% Negative
Pathogenic Prevalence in Rhode Island
The bars below show the positive/negative prevalence ratio of selected pathogens we test for.
These pathogens were observed in ticks from Rhode Island.
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 227 ticks.
34% Positive
66% Negative
Borrelia burgdorferi
(American dog tick) associated with Lyme disease
Sample size of 38 ticks.
Warning: Low Sample Size
Anaplasma phagocytophilum
associated with anaplasmosis
Sample size of 215 ticks.
Babesia microti
associated with babesiosis
Sample size of 200 ticks.
Bartonella spp.
associated with bartonellosis
Sample size of 80 ticks.
Ehrlichia chaffeensis
associated with ehrlichiosis
Sample size of 45 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Francisella tularensis
associated with tularemia
Sample size of 33 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Borrelia miyamotoi
associated with B. miyamotoi
Sample size of 112 ticks.
Babesia spp.
associated with babesiosis
Sample size of 41 ticks.
Warning: Low Sample Size
Mycoplasma spp.
associated with Mycoplasma spp.
Sample size of 34 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Borrelia spp.
associated with Borrelia spp.
Sample size of 40 ticks.
Warning: Low Sample Size
30% Positive
70% Negative
Borrelia mayonii
associated with Lyme disease
Sample size of 58 ticks.
0% Positive
100% Negative
Babesia duncani
associated with babesiosis
Sample size of 26 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Rickettsia rickettsii
associated with Rocky Mountain spotted fever
Sample size of 42 ticks.
Warning: Low Sample Size
0% Positive
100% Negative
Ehrlichia muris-like
associated with ehrlichiosis
Sample size of 25 ticks.
Warning: Low Sample Size
Anaplasma phagocytophilum - Deer Variant
associated with non-human anaplasmosis
Sample size of 55 ticks.
Anaplasma phagocytophilum - Human Active
associated with anaplasmosis
Sample size of 55 ticks.
Pathogen and co-infected tick prevalence data is © TickCheck, and is derived from our tick testing results and laboratory research.
