Test Menu

FungiFlex®
Mold Panel

Detects fungal cell-free DNA in plasma to identify invasive mold infections direct from plasma

K2-EDTA
Plasma
Turnaround
<24h
after sample receipt
Test Code
FM001
CPT Code
87798

Results Reported

14 species of molds reported in 7 clinically actionable groups

Organism reported Targets included
Aspergillus flavusA. flavus
Aspergillus fumigatusA. fumigatus
Aspergillus nigerA. niger
Aspergillus terreusA. terreus
Fusarium spp.F. verticillioides, F. oxysporum, F. solani
ScedosporiumScedosporium spp., Lomentospora prolificans
Mucorales agentsMucor circinelloides, Rhizomucor miehei, Rhizopus microsporus, Rhizopus oryzae, Cunninghamella bertholletiae

Clinical Utility

A plasma-based mold cfDNA assay offers a rapid, noninvasive way to support the diagnosis of invasive fungal infection — without biopsy or bronchoalveolar lavage.

Invasive fungal infections can present as a range of syndromes, including invasive rhinosinusitis, pneumonia, central nervous system disease, and skin or soft tissue involvement. As the number of patients undergoing transplantation and receiving immunosuppressive therapy continues to grow, so does the at-risk population and the incidence of IFIs. Aspergillus species and Mucorales are among the most frequent causes, and are usually diagnosed by sampling deep tissues such as lung — often through biopsy, or by bronchoalveolar lavage (BAL) as a less invasive surrogate. Both approaches carry procedural risk and may be nondiagnostic when paired with conventional assays.

Specimen Instructions

Sample requirements

Container type
K2-EDTA (Purple Top)
Sample volume
>2 mL Plasma OR >5 mL Whole Blood
Preferred specimen
  • Whole Blood If received by the Zepto laboratory < 24 hours after collection
  • Plasma If received by the Zepto laboratory > 24 hours after collection

Sample stability

Sample type Temperature Stability
Whole Blood Ambient Up to 24 hours
Plasma Ambient Up to 96 hours
Frozen Plasma ≤ −20°C Up to 6 months

Storage & shipping

  • Store plasma at ambient temperature (4–25°C) for short-term holding.

  • Specimens must arrive at Zepto Life within 96 hours of blood draw when shipped at ambient temperature.

  • If shipment will be delayed beyond 96 hours, freeze plasma at ≤ −20°C and ship on dry ice.

  • Frozen specimens may be stored at ≤ −20°C for up to 6 months prior to shipment.

Note — if plasma is expected to reach the Zepto laboratory more than 96 hours after collection, freeze the sample and ship on dry ice.

How to order this test.

Requisition form & sendout instructions

Performed at our high-complexity CLIA-certified reference laboratory →
NOT FDA-CLEARED · THIS TEST WAS DEVELOPED AND ITS PERFORMANCE CHARACTERISTICS DETERMINED BY ZEPTO LIFE TECHNOLOGY, IN A MANNER CONSISTENT WITH CLIA REQUIREMENTS.

References

01Young, J.A.H. et al. Extrapulmonary and Other Pneumocystis jirovecii Infections Diagnosed via Fungal Cell-Free DNA Using Giant Magnetoresistance Detection. Journal of Fungi, 2026. doi.org/10.3390/jof12060435
02Zepto Life Technology. A culture-free diagnostic approach for invasive fungal infections. Open Forum Infectious Diseases, 2025. academic.oup.com/ofid
03cfDNA and GMR technology in Candida krusei fungemia monitoring. Journal of Fungi, 2024;10(7):449. doi.org/10.3390/jof10070449
04Vergidis, P. et al. Diagnosis of Invasive Fungal Infection Using a Cell-Free DNA Assay Coupled with GMR Lab-on-a-Chip Technology. Presented at ECCMID, 2024.
05Detection of Aspergillus fumigatus Cell-Free DNA Using Giant Magnetoresistance Technology. Presented at Advances Against Aspergillosis, 2024.