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 74% of tick tested are infected with at least one disease causing organism, 49% are co-infected with two or more, 18% carry three or more, and 9% of the ticks tested carry four or more.

Infection Visualization by Tick Species

All Ticks Tested
74% Positive for Infection
Negative (26%)
Ixodes scapularis (deer tick)
95% Positive for Infection
Negative (5%)
Amblyomma americanum (lone star tick)
62% Positive for Infection
Negative (38%)
Dermacentor variabilis (American dog tick)
48% Positive for Infection
Negative (52%)

Coinfection Visualization

4+ Coinfection (9%)
3+ Coinfection (18%)
2+ Coinfection (49%)
No Co-infection (51%)

Pathogenic Prevalence

The bars below show the positive/negative prevalence ratio of selected pathogens we test for. These pathogens were observed in ticks from the United States and Canada. 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 3,080 ticks.
29% Positive
71% Negative

Borrelia burgdorferi (western blacklegged tick) associated with Lyme disease

Sample size of 212 ticks.
5% Positive
95% Negative

Borrelia burgdorferi (lone star tick) associated with Lyme disease

Sample size of 867 ticks.
8% Positive
92% Negative

Borrelia burgdorferi (American dog tick) associated with Lyme disease

Sample size of 897 ticks.
2% Positive
98% Negative

Anaplasma phagocytophilum associated with anaplasmosis

Sample size of 1,855 ticks.
8% Positive
92% Negative

Babesia microti associated with babesiosis

Sample size of 1,624 ticks.
4% Positive
96% Negative

Bartonella spp. associated with bartonellosis

Sample size of 929 ticks.
47% Positive
53% Negative

Ehrlichia chaffeensis associated with ehrlichiosis

Sample size of 814 ticks.
2% Positive
98% Negative

Rickettsia spp. associated with Rocky Mountain spotted fever

Sample size of 900 ticks.
21% Positive
79% Negative

Francisella tularensis associated with tularemia

Sample size of 1,007 ticks.
1% Positive
99% Negative

Borrelia miyamotoi associated with B. miyamotoi

Sample size of 960 ticks.
6% Positive
94% Negative

Borrelia lonestari associated with STARI

Sample size of 810 ticks.
20% Positive
80% Negative

Babesia spp. associated with babesiosis

Sample size of 494 ticks.
5% Positive
95% Negative

Mycoplasma spp. associated with Mycoplasma spp.

Sample size of 870 ticks.
9% Positive
91% Negative

Borrelia spp. associated with Borrelia spp.

Sample size of 542 ticks.
15% Positive
85% Negative

Powassan virus Lineage II associated with Deer tick virus

Sample size of 31 ticks. Warning: Low Sample Size
45% Positive
55% Negative

Borrelia mayonii associated with Lyme disease

Sample size of 254 ticks.
0% Positive
100% Negative

Ehrlichia ewingii associated with ehrlichiosis

Sample size of 274 ticks.
0% Positive
100% Negative

Rickettsia amblyommii associated with Rocky Mountain spotted fever

Sample size of 167 ticks.
46% Positive
54% Negative
Pathogen and co-infected tick prevalence data is © TickCheck, and is derived from our tick testing results and laboratory research.