At MiDOG, we’re constantly pushing the boundaries of what’s possible in microbial diagnostics—and today, we’re proud to share a milestone moment in exotic animal medicine.
MiDOG is a co-author on a newly published study in Microbiology Resource Announcements (American Society for Microbiology), detailing the first-ever metagenome-assembled genome (MAG) of Cryptosporidium serpentis, a chronic and often deadly gastrointestinal parasite in snakes.
👉 Read the full paper: https://journals.asm.org/doi/10.1128/mra.00342-25
Why This Matters: A Missing Piece in Reptile Pathogen Genomics
While Cryptosporidium species in mammals have been studied and sequenced extensively, reptile-specific species—especially C. serpentis—have lacked genomic representation in public databases. This gap has made accurate diagnosis, comparative analysis, and treatment strategies much more challenging for exotic and zoo veterinarians.
This new publication closes that gap by making the C. serpentis genome publicly accessible for the first time.
Study Overview: From Sample to Genome
Sample Source:
The genome was recovered from a gastric lavage sample of an asymptomatic eastern indigo snake (Drymarchon couperi), a threatened species and one of the largest native snakes in the U.S.
Sequencing & Analysis Tools Used:
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Illumina NovaSeq X
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MetaSPAdes for assembly
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MetaBAT2 for binning
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Kraken2 for taxonomic classification
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BUSCO for genome quality assessment
Despite the low biomass nature of the sample and the complex microbial background, the team was able to successfully extract, assemble, and validate a high-quality metagenomic genome.
What This Genome Enables
This genomic breakthrough unlocks multiple new opportunities for research and diagnostics:
🔬 Improved Pathogen Detection:
This MAG will help researchers and diagnosticians detect C. serpentis more accurately in future metagenomic datasets, especially in asymptomatic animals where traditional methods often fall short.
🧬 Comparative Genomics:
By comparing this genome with other Cryptosporidium species, researchers can now investigate evolutionary relationships, virulence factors, and host specificity across different taxa.
🐍 Better Understanding of Host-Pathogen Dynamics:
With a reptile-specific genome in hand, we can deepen our insights into how C. serpentis interacts with reptile hosts, which may inform new treatment approaches and conservation strategies.
A Win for Wildlife, Research, and Diagnostics
This project underscores the power of noninvasive sampling and advanced metagenomic tools to deliver actionable insights—even in exotic species where traditional diagnostics fall short.
For MiDOG, this publication represents more than a research win. It’s a reaffirmation of our mission:
To make advanced microbial diagnostics accessible, accurate, and impactful across every animal species and clinical setting.
We’re proud to have collaborated with:
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Mark Yacoub, PhD
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James Bogan
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Alexandra Mason
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And our own MiDOG scientific team
What’s Next?
With this genome now publicly available, we anticipate it will serve as a springboard for future research in exotic animal health, wildlife disease surveillance, and One Health initiatives.
Stay tuned as MiDOG continues to contribute to the scientific landscape—not only as a diagnostic partner but as a research innovator shaping the future of veterinary microbiology.
Follow us for updates on upcoming publications, conference presentations, and innovations in microbial NGS diagnostics.
🧬 MiDOG: Diagnostics That Deliver. For Every Animal. Every Sample.