Fecal Dx antigen testing

Discover more intestinal parasite infections, earlier

Only from IDEXX Reference Laboratories

 Detect more hookworm, roundworm, and whipworm infections, even when eggs aren't present1,2

Earlier detection than fecal flotation.

Detect 2x more hookworm, roundworm, and whipworm infections than fecal O&P alone.

Find what the microscope misses with Fecal Dx
antigen testing1–3,5

  • Identify infections prior to eggs being shed.
  • Avoid false-negative results caused by intermittent shedding of eggs.
  • Detect worms even if eggs are not present in the fecal sample.

Get test codes now

Young girl playing with dog in grassy yard

Help protect pets and families like never before

Detecting infections sooner helps you treat effectively, reducing the risk of infection to other pets and family members.4


Learn about antigen testing


Get diagnostic support

From infection to presentation: learn how to diagnose hookworm, roundworm, and whipworm earlier.

Clinical reference guide

Talk with your clients

Help your pet owners be proactive about regular parasite screening. Get resources to increase client compliance and reduce the spread of infection.

Increase client compliance

Include Fecal Dx antigen testing as part of every fecal examination



  1. Elsemore DA, Geng J, Flynn L, Cruthers L, Lucio-Forster A, Bowman DD. Enzyme-linked immunosorbent assay for coproantigen detection of Trichuris vulpis in dogs. J Vet Diagn Invest. 2014;26(3):404–411.
  2. Data on file at IDEXX Laboratories, Inc. Westbrook, Maine USA.
  3. Data on file at IDEXX Laboratories, Inc. Westbrook, Maine USA: Aggregate detection of hookworm, roundworm, and whipworm infections.
  4. CAPC guidelines: controlling internal and external parasites in U.S. dogs and cats. Pets & Parasites website. www.petsandparasites.org/resources/capc-guidelines. Accessed March 28, 2019.
  5. Elsemore DA, Geng J, Cote J, Hanna R, Lucio-Forster A, Bowman D. Enzyme-linked immunosorbent assays for coproantigen detection of Ancylostoma caninum and Toxocara canis in dogs and Toxocara cati in cats. J Vet Diagn Invest. In press.