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 72% of tick tested are infected with at least one disease causing organism, 45% are co-infected with two or more, 17% carry three or more, and 7% of the ticks tested carry four or more.

Infection Visualization by Tick Species

All Ticks Tested
72% Positive for Infection
Negative (28%)
Ixodes scapularis (deer tick)
86% Positive for Infection
Negative (14%)
Amblyomma americanum (lone star tick)
63% Positive for Infection
Negative (37%)
Dermacentor variabilis (American dog tick)
47% Positive for Infection
Negative (53%)

Coinfection Visualization

4+ Coinfection (7%)
3+ Coinfection (17%)
2+ Coinfection (45%)
No Co-infection (55%)

Pathogenic Prevalence in Pennsylvania

The bars below show the positive/negative prevalence ratio of selected pathogens we test for. These pathogens were observed in ticks from Pennsylvania. 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 721 ticks.
34% Positive
66% Negative

Borrelia burgdorferi (lone star tick) associated with Lyme disease

Sample size of 36 ticks. Warning: Low Sample Size
19% Positive
81% Negative

Borrelia burgdorferi (American dog tick) associated with Lyme disease

Sample size of 115 ticks.
3% Positive
97% Negative

Anaplasma phagocytophilum associated with anaplasmosis

Sample size of 384 ticks.
10% Positive
90% Negative

Babesia microti associated with babesiosis

Sample size of 355 ticks.
3% Positive
97% Negative

Bartonella spp. associated with bartonellosis

Sample size of 151 ticks.
49% Positive
51% Negative

Ehrlichia chaffeensis associated with ehrlichiosis

Sample size of 56 ticks.
4% Positive
96% Negative

Rickettsia spp. associated with Rocky Mountain spotted fever

Sample size of 73 ticks.
16% Positive
84% Negative

Francisella tularensis associated with tularemia

Sample size of 68 ticks.
0% Positive
100% Negative

Borrelia miyamotoi associated with B. miyamotoi

Sample size of 128 ticks.
5% Positive
95% Negative

Borrelia lonestari associated with STARI

Sample size of 34 ticks. Warning: Low Sample Size
15% Positive
85% Negative

Babesia spp. associated with babesiosis

Sample size of 90 ticks.
4% Positive
96% Negative

Mycoplasma spp. associated with Mycoplasma spp.

Sample size of 106 ticks.
4% Positive
96% Negative

Borrelia spp. associated with Borrelia spp.

Sample size of 64 ticks.
19% Positive
81% Negative

Powassan virus Lineage II associated with Deer tick virus

Sample size of 27 ticks. Warning: Low Sample Size
15% Positive
85% Negative

Borrelia mayonii associated with Lyme disease

Sample size of 60 ticks.
0% Positive
100% Negative
Pathogen and co-infected tick prevalence data is © TickCheck, and is derived from our tick testing results and laboratory research.