Vector-borne disease diagnostics

IDEXX 4Dx Plus Test

The most accurate solution available for detecting vector-borne disease, available in-house and at the reference lab.

Go beyond detection.

The IDEXX 4Dx Plus Test sets the highest standard for accuracy and ease-of-use in the industry. But that’s just the beginning. What makes the IDEXX 4Dx Plus Test so valuable is all the support, guidance, tools, and integration that go beyond your test results. With follow-up testing, clear next-step considerations, connected results, and client-friendly handouts, you’ll never be left on your own.

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More from every sample.

Screen for 7 vector-borne pathogens with 1 simple test.

Heartworm

No state is immune to heartworm disease—it's been found in all 50. Regular screening ensures you catch infections early, even in cases where there’s a low worm count. So you can start treatment as early as possible for best results.

Ehrlichia

Detect the antibodies of Ehrlichia canis, Ehrlichia ewingii, and Ehrlichia chaffeensis, to give you a more complete indication of tick exposure and transmission of infections. As Ehrlichia becomes more and more widespread, this screening becomes more important.

Lyme disease

Our proprietary, proven C6 ELISA technology lets you more accurately identify Lyme disease in clinically and subclinically infected dogs for more informed treatment decisions.

Anaplasma

Annually screen dogs to identify exposure to Anaplasma phagocytophilum and Anaplasma platys. Early detection gives pets a better prognosis and drives home the importance of tick control.

Too small to see, too big to ignore.

Tick-borne diseases are now more prevalent than heartworm in 48 out of 50 states.1-4 In some cases, there may not even be symptoms. Testing is the only way to know your canine patient’s status.

Heartworm detected in
1 out of 100 dogs1

Ehrlichia spp. detected in
1 out of 30 dogs3

Borrelia burgdorferi detected in 1 out of 20 dogs2

Anaplasma spp. detected in
1 out of 15 dogs4

View CAPC parasite prevalence maps

The VBD and CKD connection.

Exposure to tick-borne diseases increases the risk of developing chronic kidney disease.

Lyme +43% increased risk

Ehrlichia +112% increased risk

Read the study >

Two testing options, same reliable test.

Whether you prefer to screen in-house or have our lab perform your testing, the IDEXX 4Dx Plus Test offers the gold-standard of vector‑borne disease screening.

In-house

The SNAP 4Dx Plus Test provides reference lab technology in the palm of your hand. Get results in 8 minutes, and use the SNAP Pro Analyzer to simplify your workflow.

Reference lab

The Lab 4Dx Plus Test can be used for wellness screening, sick patient testing, as well as part of broader IDEXX Preventive Care profiles.

View your testing options

Support

Directory of Tests and Services

Browse the online Directory of Tests and Services to see a comprehensive list of offerings from IDEXX Reference Laboratories.

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SNAP test insert and resources

Access the SNAP 4Dx Plus Test product insert, accuracy data, sample preparation, results interpretation information, and more.

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Find out how the IDEXX 4Dx Plus Test can help you fight more vector-borne diseases.

With vector-borne diseases on the rise, screening is more important than ever. In addition to detecting 7 diseases in 1 test, the IDEXX 4Dx Plus Test offers:

  • Improved pet owner communication before, during, and after visits.
  • Advanced diagnostic algorithms for better decision-making.
  • Clinical support resources to optimize workflow.
  • Testing options in-house or at our reference laboratories.

References

  1. Companion Animal Parasite Council. Parasite prevalence maps: heartworm—dog. CAPC website. Published January 2025. Accessed February 27, 2025. capcvet.org/maps/#/2024/all-year/heartworm-canine/dog/united-states
  2. Companion Animal Parasite Council. Parasite prevalence maps: Lyme disease—dog. CAPC website. Published January 2025. Accessed February 27, 2025. capcvet.org/maps/#/2024/all-year/lyme-disease/dog/united-states
  3. Companion Animal Parasite Council. Parasite prevalence maps: ehrlichiosis—dog. CAPC website. Published January 2025. Accessed February 27, 2025. capcvet.org/maps/#/2024/all-year/ehrlichiosis/dog/united-states
  4. Companion Animal Parasite Council. Parasite prevalence maps: anaplasmosis—dog. CAPC website. Published January 2025. Accessed February 27, 2025. capcvet.org/maps/#/2024/all-year/anaplasmosis/dog/united-states