Ebel Lab

Infections transmitted by arthropods such as mosquitoes and ticks represent some of the most difficult and persistent problems facing public health and medicine. The Ebel Lab, as part of the CSU Center for Vector-borne Infectious Diseases, is mainly interested in arthropod-borne viruses (arboviruses), such as West Nile, dengue, and Zika viruses. We exist to help find ways to make these types of infections less burdensome. Our research addresses several areas, including arbovirus population biology and evolution, mechanisms that permit mosquitoes to transmit arboviruses, mosquito immunity, and disease surveillance. Our currently funded projects focus on West Nile, dengue, Zika and chikungunya viruses, as well as the mosquitoes that transmit them. We are also involved in developing novel methods for detecting emerging viruses in resource-poor settings such as rural West Africa.

We take a multidisciplinary approach to science that combines classical virology, entomology, and molecular and computational biology. Central concepts that guide our work include the notion that arthropod-borne viruses, like other RNA viruses, form genetically complex populations within individual hosts, and that natural selection powerfully shapes which of these variants are most fit in a given environment. We are also active in local health initiatives that consist mainly of efforts to limit the impact of West Nile virus in Fort Collins and elsewhere on the great plains. The Ebel lab is also a part of the Rockies and High Plains Vector-borne Diseases Center, a regional training and evaluation center funded by the CDC.

research project

Quasispecies dynamics in arbovirus persistence emergence and fitness

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research project

Predicting genetic determinants of Zika virus emergence

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research project

Emergence of tick-borne encephalitis in North America

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research project

Role of cell tropism for Zika virus pathogenesis and transmission

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research project

Engineering therapies that evolve to autonomously control epidemics

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Publications

Evaluation of the safety and insecticidal efficacy of ivermectin-treated bird feed formulations in different avian species.
Savran MJ, Coffin K, Stewart CM, Nguyen C, Puska C, Ring ME, Leon AS, Schweiner P, Peters T, Randall JC, Buczek J, Lado P, Gallichotte E, Clapsaddle B, Barker CM, Ebel GD, Foy BD.  bioRxiv [Preprint]. 2025 Dec 18:2025.12.18.695243. doi: 10.64898/2025.12.18.695243. PMID: 41446104; PMCID: PMC12724676.

Investigation of Powassan virus lineage II pathogenesis and neurotropism in mice
Courtney SJ, Gallichotte EN, Nilsson E, Trammell CE, Kimball KX, Fagre AC, Vilander A, Överby AK, Ebel GD.  bioRxiv [Preprint]. 2025 Nov 7:2025.11.07.687151. doi: 10.1101/2025.11.07.687151. PMID: 41280122; PMCID: PMC12637414.

Characterizing Mixed Polyethylene Glycol Monolayers with Surface-Bound Ferrocene for Label-Free Immunosensing
Marin E, Martinez B, Whitaker T, Gallichotte EN, Ebel GD, Leroux YR, Hapiot P, Henry CS. Anal Chem. 2025 Oct 29. doi: 10.1021/acs.analchem.5c03527. Epub ahead of print. PMID: 41159369.

Development of ENTV reverse genetics system and phenotypic evaluation of rescued virus reveals host-specific replication patterns in mosquitoes.
Fujii M, Gallichotte EN, Sanchez-Vargas I, Enney BM, Malsick LE, Ebel GD, Geiss BJ. bioRxiv [Preprint]. 2025 Jul 29:2025.07.29.667424. doi: 10.1101/2025.07.29.667424. PMID: 40766458 Free PMC article. Preprint.

SARS-CoV-2 outbreak in lions, tigers, and hyenas at Denver Zoo.
Gallichotte EN, Bashor L, Erbeck K, Croft L, Stache K, Long J, VandeWoude S, Johnson JC 3rd, Pabilonia KL, Ebel GD. mSphere. 2025 Feb 25;10(2):e0098924. doi: 10.1128/msphere.00989-24. Epub 2025 Feb 6. PMID: 39912638

more publications

People

Greg Ebel headshot.
Greg Ebel, Sc.D.

Lab Principal Investigator [PI]
Director, Center for Vector-Borne Infectious Diseases
Professor

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