Comparison of two novel one-tube nested real-time qPCR assays to detect human-infecting Cyclospora spp

Microbiol Spectr. 2023 Dec 12;11(6):e0138823. doi: 10.1128/spectrum.01388-23. Epub 2023 Oct 11.

Abstract

Human-infecting Cyclospora spp. cause gastrointestinal distress among healthy individuals contributing to morbidity and putting stress on the economics of countries and companies in the form of produce recalls. Accessible and easy-to-use diagnostic tools available to a wide variety of laboratories would aid in the early detection of possible outbreaks of cyclosporiasis. This, in turn, will assist in the timely traceback investigation to the suspected source of an outbreak by informing the smallest possible recall and protecting consumers from contaminated produce. This manuscript describes two novel detection methods with improved performance for the causative agents of cyclosporiasis when compared to the currently used 18S assay.

Keywords: Cyclospora cayetanensis; TaqMan; cyclosporiasis; human Cyclospora; nested qPCR; parasitic diagnostics.

MeSH terms

  • Cyclospora* / genetics
  • Cyclosporiasis* / diagnosis
  • Cyclosporiasis* / epidemiology
  • DNA, Protozoan
  • Disease Outbreaks
  • Feces
  • Humans

Substances

  • DNA, Protozoan