Serum/Plasma Specimens

As of 7/7/2022, the following tests are back online:

  • CDC 10234: Parasites: Morphologic Identification
  • CDC 10238: Leishmania Species Identification
  • CDC 10457: Baylisascariasis Serology (recently added)
  • CDC 10458: Chagas Disease Serology
  • CDC 10465: Paragonimiasis Serology (recently added)
  • CDC 10475: Chagas Disease Molecular Detection
  • CDC 10505: Fascioliasis Serology (recently added)
  • CDC 10520: Malaria: Morphological Identification

Each test request (order) requires preapproval by the CDC Parasitic Diseases Branch. Please contact to request preapproval for your testing request. The preapproval for your request will include important details about current submission requirements and forms.

All other assays for serological, molecular, or characterization of parasitic diseases—and Trichomonas susceptibility testing—at CDC remain temporarily offline. We are working to restart additional testing as soon as possible for each test and will update this communication as soon as we are able.

CDC offers consultation to healthcare providers in the absence of diagnostic testing. Healthcare providers needing assistance with diagnosis or management of suspected cases of parasitic diseases may contact CDC’s Parasitic Diseases Hotline at (404) 718-4745, or e-mail

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DPDx is an educational resource designed for health professionals and laboratory scientists. For an overview including prevention, control, and treatment visit

Page last reviewed: July 7, 2022