Home

Jeong Lab at the University of Florida!
Goals
  • Our research goals are to provide solutions for animal and human health by understanding host-pathogen interactions at the molecular level. 
  • We develop methods to prevent and cure diseases caused by pathogens.

Recent news

Current External Grants

Development of nano-antimicrobials with beta-lactamase inhibitor to treat infections caused by multi-drug resistant bacteria. USDA-NIFA. 2019-2022, $460 K

* Understanding antibiotic resistance occurrence and development of mitigation strategies in cattle. USDA-NIFA. 2015-2020, $2.2 M

Recent Publications, Since Jan. 2018 

1. Teng, L., Lee, S., Ginn, A., Markland, S., Mir, R., DiLorenzo, R., Boucher, C., Prosperi, M., Johnson, J., Morris, G., and Jeong, K.C. 2019. Genomic comparison reveals natural occurrence of clinically relevant multi-drug resistant extended-spectrum β-lactamase producing Escherichia coli. Under review.

2. Lee, S., Fan, P., Zhang, K., Anderson, W.M., Wight, B., Boughton, R.K., and Jeong, K.C. 2019. High prevalence and genomic characteristics of multi-drug resistant extended-spectrum β-lactamase-producing pathogens in livestock and wildlife. Under review

3. Lee, S., Mir, R.A., Park, S.H., Kim, D., Kim, H.Y., Boughton, R.K., Morris, G., and Jeong, K.C. 2019. Increasing prevalence of extended-spectrum β-lactamases in the environment and livestock: challenges to mitigate antimicrobial resistance. Under review.

4. Markland, S., Thomas A. Weppelmann, Zhengxin Ma, Shinyoung Lee, Raies A. Mir, Lin Teng, Amber Ginn, Choonghee Lee, Maria Ukhanova, Sebastian Galindo, Chad Carr, Nicolas DiLorenzo, SooHyoun Ahn, Jae Hyung Mah, Volkar Mai, Mobley Ray, J Glenn Morris, and K.C. Jeong. 2019. High Prevalence of Cefotaxime Resistant Bacteria in grazing Beef Cattle: A Cross Sectional Study. Front. in Microbiol. 10:176.

5Piersanti, R.L., Zimpel, R., Molinari, P.C.C., Dickson, M.J., Ma, Z.X., Jeong, K.C., Santos, J.E.P., Sheldon, I.M., and Bromfield, J.J., 2019. A model of clinical endometritis in Holstein heifers using pathogenic Escherichia coli and Trueperella pyogenes. J. Dairy Sci. Accepted.

6. Dai, X., Paula, E. M., Lelis, A. L. J., Silva, L. G., Brandao, V. L. N., Monteiro, H. F., Fan, P., Poulson, S. R., Jeong, K. C., and Faciola, A. P. 2019. Effect of lipopolysaccharide dosing on bacterial community composition and fermentation in a dual-flow continuous culture system. J. Dairy Sci. 102:334-350

7. Alejandro Garrido-Maestu, Zhengxin Ma, Sae-Yeol-Rim Paik, Nusheng Chen, Sanghoon Ko, Zhaohui Tong, K.C. Jeong. 2018. Engineering of Chitosan-derived nanoparticles to enhance antimicrobial activity against foodborne pathogen Escherichia coli O157:H7. Carbohydrate Polymers. 197:623-630

8. Ma, Z., Ginn, A., Kang, M. Galvao K.N., and Jeong, K.C. 2018. Genomic and virulence characterization of intrauterine pathogenic Escherichia coli with multi-drug resistance isolated from cow uteri with metritis. Frontiers in Microbiol. 9:3137

9. Mir, R, T.A. Weppelmann, L. Teng, A. Kirpich, M.A. Elzo, J.D. Driver, and K.C. Jeong. 2018. Colonization Dynamics of Cefotaxime Resistant Bacteria in Beef Cattle Raised Without Cephalosporin Antibiotics. Frontiers in Microbiol. 9:1-12

10. Jeong, K.C. J. Gyore, L. Teng, D. Ghosal, G.J. Jensen, J.P. Vogel. 2018. Polar targeting and assembly of the Legionella Dot/Icm type IV secretion system (T4SS) by T6SS-related components. bioRxiv. doi: https://doi.org/10.1101/315721

11. Ghosal, D. Yi-Wei Chang, K.C. Jeong, J.P. Vogel, G. Jensen. 2018. Molecular architecture of the Legionella Dot/Icm type IV secretion system. bioRxiv. doi: http://dx.doi.org/10.1101/312009

12. Belli, A.L., A. Veronese, R. Moreira, K. Flanagan, M. Ballou, J. Clapper, J. Driver, C. Nelson, Corwin; K.C. Jeong, R. Ricardo. 2018. Effects of treatment of pre-weaned dairy calves with recombinant bovine somatotropin on immune responses and somatotropic axis. J. Dairy Sci. 101:1-14

13. Rothrock, M., Peixin Fan, K.C. Jeong, Sun Ae Kim, Steven Ricke, and Si Hong Park. 2018. Genome sequences of a Listeria monocytogenes strain isolated from pastured flock poultry farm system. genomeA. 6(10). E00171-18. doi: 10.1128/genomeA.00171-18.

14. Van Bruggen, AHC. M.M. He, K. Shin, V. Mai, K.C. Jeong, M.R. Finckh, J. G. Morris. 2018. Environmental and health effects of the herbicide glyphosate. Science of The Total Environment. 616:255-268.

15. Lee, SY. M.J. Kim, H.J. Kim, K.C. Jeong, H.Y. Kim. 2018. Simultaneous detection of four foodborne viruses in food samples using a one-step multiplex PCR. J. Microbiol. Biotechnol. doi: 10.4014/jmb.1710.10008.

16. Ogunade IM, Jiang Y, Pech Cervantes AA, Kim DH, Oliveira AS, Vyas D, Weinberg ZG, Jeong KC, Adesogan AT. 2018. Bacterial diversity and composition of alfalfa silage as analyzed by Illumina MiSeq sequencing: Effects of Escherichia coli O157:H7 and silage additives. J. Dairy Sci. doi: 10.3168/jds.2017-12876.10.

17. Ma, Z.X., A. Garrido-Maestu, C. Lee, J. Chon, D. Jeong, Y. Yue, K. Sung, Y. Park, and K.C. Jeong. 2018. Comprehensive in vitro and in vivo evaluation of chitosan microparticles for risk assessments using epithelial cells and Caenorhabditis elegans. Hazardous Materials. J. Hazardous Materials. 341:248-256.

On going... Research topics

Antimicrobial resistant microorganisms (i.e. ESBL)

Multidrug resistance


Chitosan microparticles


Disease control



Whole genome sequencing (WGS)


Metagenomics


Comparative genomics
Supported by