Respiratory symptoms got you breathless? Try our equine respiratory PCR panel -- we test for 7 respiratory bacteria and viruses from 1 swab.

Neurological symptoms got you down? Try our equine neurological PCR panel -- we test for 5 neurological diseases from 1 CSF or tissue sample.

Diarrhea got you on the run? Try our equine GI / diarrhea PCR panel -- we test for 4 GI diseases from 1 fecal or swab sample.

Oh baby! Our equine breeding/abortion PCR panel tests for 5 diseases affecting breeding success from 1 swab or semen sample.

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For our international clients: Our DRY CARDS let you mail blood samples to Zoologix easily and cheaply from anywhere. Samples are small, light and stable at room temperature.

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Zoologix performs equine PCR tests for...

African horse sickness

Anaplasma phagocytophilum



Borrelia burgdorferi

Burkholderia mallei and pseudomallei

Clostridium difficile

Clostridium species

Contagious equine metritis (CEM)



Eastern equine encephalitis (EEE)

E. coli O157:H7

E. coli panel

Equine adenoviruses

Equine arteritis virus (EAV)

Equine herpesvirus
type 1

Equine herpesvirus
type 2

Equine herpesvirus
type 3

Equine herpesvirus
type 4

Equine herpesvirus
type 5

Equine infectious anemia (EIA)

Equine piroplasmosis

Equine protozoal myeloencephalitis (EPM)





Horsepox virus


Japanese encephalitis

Lawsonia intracellularis


Lyme disease


Neospora caninum

Neospora hughesi


Potomac horse fever


Rhodococcus equi


Sarcocystis neurona

St. Louis encephalitis

Strangles (Strep equi)

Streptococcus pneumoniae




Taylorella equigenitalis

Theileria equi

Toxoplasma gondii

Treponema pallidum


Trypanosoma equiperdum

Trypanosoma evansi

Venezuelan equine encephalitis (VEE)

Vesicular stomatitis

West Nile virus (WNV)

Western Equine Encephalitis (WEE)

Yersinia enterocolitica

Yersinia pseudotuberculosis

Genetic tests for...

Hyperkalemic periodic paralysis

Histoplasma PCR test for horses

equine assay data sheet


Test code:
F0006 - Ultrasensitive qualitative detection of Histoplasma species by real time polymerase chain reaction

Histoplasma is a genus of dimorphic fungi belonging to the family Ajellomycetaceae which are commonly found in bird and bat fecal material. The Histoplasma genus includes H. capsulatum which causes histoplasmosis; H. farciminosum which causes epizootic lymphangitis in horses; and H. duboisii which causes African histoplasmosis.

H. capsulatum is most prevalent in the Ohio and Mississippi river valleys. The disease caused by H. capsulatum is called histoplasmosis, also known as "cave disease," "Darling's disease," "Ohio Valley disease," "Reticuloendotheliosis," "spelunker’s lung" and “caver's disease.” Symptoms primarily affect the lungs, but other organs can be affected if the fungus spreads in the body. Histoplasmosis is commonly found in immunocompromised individuals such as AIDS patients and cancer patients.

People can be infected by inhaling microscopic fungi borne from bird or bat feces, or decomposing human biological fluids including urine, vomit, and feces.

Histoplasmosis can be diagnosed by detection of antigens in blood or urine samples by immunological or molecular methods. However, immunology is not very specific because antigens of Histoplasma can cross-react with antigens of blastomycosis, coccidioidomycosis, paracoccidioidomycosis and Penicillium marneffei infection. Formal histoplasmosis diagnoses may be confirmed by culturing the fungus directly. However, cultures may take up to 6 weeks for diagnostic growth to occur. Molecular detection by polymerase chain reaction (PCR) can provide a rapid, specific and sensitive method for diagnosis of this fungus (Elias et al., 2012).


  • Help confirm the disease causing agent
  • Shorten the time required to confirm a clinical diagnosis of Histoplasma infection.
  • Help ensure that herds are free of this fungus
  • Early prevention of spread of this fungus
  • Minimize personnel exposure to this fungus
  • Safety monitoring of biological products and vaccines that derive from horses

Elías, N.A., Cuestas, M.L., Sandoval, M., Poblete, G., Lopez-Daneri, G., Jewtuchowicz, V., Iovannitti, C. and Mujica, M.T. (2012) Rapid identification of Histoplasma capsulatum directly from cultures by multiplex PCR. Mycopathologia. 174:451-456.

Specimen requirements: 0.2 ml whole blood in EDTA (purple top) or ACD (yellow top) tube, or urine, or sputum, or bronchoalveolar lavage, or feces or fecal swab, or 0.2 ml fresh, frozen or fixed tissue, or environmental surface swab.

Contact Zoologix if advice is needed to determine an appropriate specimen type for a specific diagnostic application. For specimen types not listed here, please contact Zoologix to confirm specimen acceptability and shipping instructions.

For all specimen types, if there will be a delay in shipping, or during very warm weather, refrigerate specimens until shipped and ship with a cold pack unless more stringent shipping requirements are specified. Frozen specimens should be shipped so as to remain frozen in transit. See shipping instructions for more information.

Turnaround time: 2 business days

Methodology: Qualitative real time PCR

Normal range: Nondetected

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