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NC Department of Health and Human Services
State Laboratory of Public Health
N.C. Public Health Home

Microbiology: Parasitology

Diagnostic specimens for examination for the presence of human parasites are accepted from public health care providers only; patients should be symptomatic. Feces and other specimens are examined for eggs, cysts and larvae of the intestinal parasitic worms and protozoa.

Reference specimens for confirmation of parasite identity or further identification, with the exception of blood specimens, are accepted from all laboratories. Testing for blood parasites is available from the Centers for Disease Control and Prevention (CDC).

Testing for Cryptosporidium and Cyclospora are offered upon request. Testing for Microsporidium is NOT available at this time.

For arthropod examinations, contact the Entomology Department, North Carolina State University (919-515-9530) directly to arrange. A fee is charged for this service.

Consultation and limited bench training are available upon request.

E. coli cyst
E. coli cyst
Giardia duodenalis
Giardia duodenalis

Images from CDC library (

SLPH Microbiology Information