Morley, Paul
individual record
Professor and Director of Research
Positions:
- Professor and Director, Large Animal Clinical Sciences, School of Veterinary Medicine and Biomedical Sciences
overview
Dr. Morley is an epidemiologist and veterinary internal medicine specialist that studies infectious diseases affecting animals and people. Major emphasis for his professional activities includes using analytical epidemiology to improve our understanding and control of diseases in animals and people, investigating the ecology of pathogens and antimicrobial resistance determinants in animals and food production systems, and using infection control and biosecurity to manage health risks that are important in veterinary medicine, agriculture, and public health. Most recently he has used metagenomic methods to investigate the effects of agriculture production practices on antimicrobial resistance and microbial ecology as these affect human, animal, and ecosystem health. In 2019, he was appointed the Director of Research for VERO - the Veterinary Education, Research & Outreach Program - in the College of Veterinary Medicine and Biomedical Sciences at Texas A&M University. In this role, he supports the growth of research programs for all VERO faculty, supervises and provides oversight for research staff and laboratories, and promotes research exposure programs for veterinary and undergraduate students. Previously, Dr. Morley served for 20 years as Professor of Epidemiology and the Director of Infection Control at Colorado State University's Veterinary Teaching Hospital. He is a recognized authority on infection control in animal populations and has consulted on infection control and biosecurity issues at veterinary hospitals, veterinary colleges, and animal production facilities around the world.
selected publications
Academic Articles36
- Pinnell, L. J., Young, J. D., Thompson, T. W., Wolfe, C. A., Bryant, T. C., Nair, M. N., Richeson, J. T., & Morley, P. S. (2023). Establishing the link between microbial communities in bovine liver abscesses and the gastrointestinal tract.. Animal Microbiome. 5(1), 58.
- Pinnell, L. J., Kuiper, G., Huebner, K. L., Doster, E., Parker, J. K., Alekozai, N., ... Morley, P. S. (2023). More than an anthropogenic phenomenon: Antimicrobial resistance in ungulates from natural and agricultural environments.. Science of the Total Environment. 858(Pt 1), 159789-159789.
- Bonin, N., Doster, E., Worley, H., Pinnell, L. J., Bravo, J. E., Ferm, P., ... Boucher, C. (2023). MEGARes and AMR++, v3.0: an updated comprehensive database of antimicrobial resistance determinants and an improved software pipeline for classification using high-throughput sequencing.. Nucleic Acids Research (NAR). 51(D1), D744-D752.
- Pinnell, L. J., & Morley, P. S. (2022). The Microbial Ecology of Liver Abscesses in Cattle.. Veterinary Clinics of North America - Food Animal Practice. 38(3), 367-381.
- Weinroth, M. D., Thomas, K. M., Doster, E., Vikram, A., Schmidt, J. W., Arthur, T. M., ... Belk, K. E. (2022). Resistomes and microbiome of meat trimmings and colon content from culled cows raised in conventional and organic production systems.. Animal Microbiome. 4(1), 21.
- Crosby, W. B., Pinnell, L. J., Richeson, J. T., Wolfe, C., Castle, J., Loy, J. D., ... Morley, P. S. (2022). Does swab type matter? Comparing methods for Mannheimia haemolytica recovery and upper respiratory microbiome characterization in feedlot cattle.. Animal Microbiome. 4(1), 49.
- Pinnell, L. J., Reyes, A. A., Wolfe, C. A., Weinroth, M. D., Metcalf, J. L., Delmore, R. J., ... Engle, T. E. (2022). Bacteroidetes and Firmicutes Drive Differing Microbial Diversity and Community Composition Among Micro-Environments in the Bovine Rumen.. Frontiers in Veterinary Science. 9, 897996.
- Vasquez, A., Nydam, D., Foditsch, C., Warnick, L., Wolfe, C., Doster, E., & Morley, P. S. (2022). Characterization and comparison of the microbiomes and resistomes of colostrum from selectively treated dry cows.. Journal of Dairy Science (JDS). 105(1), 637-653.
- Doster, E., Pinnell, L. J., Noyes, N. R., Parker, J. K., Anderson, C. A., Booker, C. W., ... Morley, P. S. (2022). Evaluating the effects of antimicrobial drug use on the ecology of antimicrobial resistance and microbial community structure in beef feedlot cattle.. Frontiers in Microbiology. 13, 970358.
- Valeris-Chacin, R., Powledge, S., McAtee, T., Morley, P. S., & Richeson, J. (2022). Mycoplasma bovis is associated with Mannheimia haemolytica during acute bovine respiratory disease in feedlot cattle.. Frontiers in Microbiology. 13, 946792.
- Warder, L., Doster, E., Parker, J. K., Morley, P. S., McClure, J. T., Heider, L. C., & Snchez, J. (2021). Characterization of the microbiota and resistome of bulk tank milk samples from Prince Edward Island dairy farms.. Journal of Dairy Science (JDS). 104(10), 11082-11090.
- Schmidt, J. W., Vikram, A., Doster, E., Thomas, K., Weinroth, M. D., Parker, J., ... Arthur, T. M. (2021). Antimicrobial Resistance in U.S. Retail Ground Beef with and without Label Claims Regarding Antibiotic Use.. JOURNAL OF FOOD PROTECTION. 84(5), 827-842.
- Schmidt, J. W., Vikram, A., Arthur, T. M., Belk, K. E., Morley, P. S., Weinroth, M. D., & Wheeler, T. L. (2020). Antimicrobial Resistance at Two U.S. Cull Cow Processing Establishments.. JOURNAL OF FOOD PROTECTION. 83(12), 2216-2228.
- Costard, S., Pouzou, J. G., Belk, K. E., Morley, P. S., Schmidt, J. W., Wheeler, T. L., Arthur, T. M., & Zagmutt, F. J. (2020). No Change in Risk for Antibiotic-Resistant Salmonellosis from Beef, United States, 2002-2010.. Emerging Infectious Diseases. 26(9), 2108-2117.
- Taylor, D. D., Martin, J. N., Morley, P. S., Belk, K. E., White, A. E., & Scallan Walter, E. J. (2020). Survey of production animal veterinarians' prescription practices, factors influencing antimicrobial drug use, and perceptions of and attitudes toward antimicrobial resistance.. Journal of the American Veterinary Medical Association. 257(1), 87-96.
- Schaffer, P. A., Hershkowitz, C. S., Dowers, K. L., Golchanour, J. L., Harris, L. J., Aboellial, T. A., ... Daniels, J. B. (2020). Delayed diagnosis of fatal pneumonic canine plague: clinical and pathologic features in two naturally infected Colorado dogs.. BMC Veterinary Research. 16(1), 160.
- Marsilio, S., Newman, S. J., Estep, J. S., Giaretta, P. R., Lidbury, J. A., Warry, E., ... Steiner, J. M. (2020). Differentiation of lymphocytic-plasmacytic enteropathy and small cell lymphoma in cats using histology-guided mass spectrometry.. Journal of Veterinary Internal Medicine (JVIM). 34(2), 669-677.
- Fagre, A. C., Pabilonia, K. L., Johnston, M. S., Morley, P. S., & Burgess, B. A. (2020). Comparison of detection methods for Salmonella enterica shedding among reptilian patients at a veterinary teaching hospital.. Journal of Veterinary Diagnostic Investigation. 32(1), 118-123.
- Hannon, S. J., Brault, S. A., Otto, S., Morley, P. S., McAllister, T. A., Booker, C. W., & Gow, S. P. (2020). Feedlot Cattle Antimicrobial Use Surveillance Network: A Canadian Journey.. Frontiers in Veterinary Science. 7, 596042.
- Rao, S., Linke, L., Doster, E., Hyatt, D., Burgess, B. A., Magnuson, R., Pabilonia, K. L., & Morley, P. S. (2020). Genomic diversity of class I integrons from antimicrobial resistant strains of Salmonella Typhimurium isolated from livestock, poultry and humans.. PLoS ONE. 15(12), e0243477-e0243477.
- Doster, E., Lakin, S. M., Dean, C. J., Wolfe, C., Young, J. G., Boucher, C., ... Morley, P. S. (2020). MEGARes 2.0: a database for classification of antimicrobial drug, biocide and metal resistance determinants in metagenomic sequence data.. Nucleic Acids Research (NAR). 48(D1), D561-D569.
- Doster, E., Thomas, K. M., Weinroth, M. D., Parker, J. K., Crone, K. K., Arthur, T. M., ... Morley, P. S. (2020). Metagenomic Characterization of the Microbiome and Resistome of Retail Ground Beef Products.. Frontiers in Microbiology. 11, 541972.
- Weinroth, M. D., Martin, J. N., Doster, E., Geornaras, I., Parker, J. K., Carlson, C. R., ... Belk, K. E. (2019). Investigation of tylosin in feed of feedlot cattle and effects on liver abscess prevalence, and fecal and soil microbiomes and resistomes1.. Journal of Animal Science. 97(11), 4567-4578.
- Graham, D. W., Bergeron, G., Bourassa, M. W., Dickson, J., Gomes, F., Howe, A., ... Wittum, T. E. (2019). Complexities in understanding antimicrobial resistance across domesticated animal, human, and environmental systems.. Annals of the New York Academy of Sciences. 1441(1), 17-30.
- Scott, H. M., Acuff, G., Bergeron, G., Bourassa, M. W., Gill, J., Graham, D. W., ... Wittum, T. E. (2019). Critically important antibiotics: criteria and approaches for measuring and reducing their use in food animal agriculture.. Annals of the New York Academy of Sciences. 1441(1), 8-16.
- Lakin, S. M., Kuhnle, A., Alipanahi, B., Noyes, N. R., Dean, C., Muggli, M., ... Boucher, C. (2019). Hierarchical Hidden Markov models enable accurate and diverse detection of antimicrobial resistance sequences. Communications Biology. 2(1), 294.
- Doster, E., Rovira, P., Noyes, N. R., Burgess, B. A., Yang, X., Weinroth, M. D., ... Morley, P. S. (2019). A Cautionary Report for Pathogen Identification Using Shotgun Metagenomics; A Comparison to Aerobic Culture and Polymerase Chain Reaction for Salmonella enterica Identification. Frontiers in Microbiology. 10, 2499.
- Brault, S. A., Hannon, S. J., Gow, S. P., Warr, B. N., Withell, J., Song, J., ... Morley, P. S. (2019). Antimicrobial Use on 36 Beef Feedlots in Western Canada: 2008-2012.. Frontiers in Veterinary Science. 6, 329.
- Brault, S. A., Hannon, S. J., Gow, S. P., Otto, S., Booker, C. W., & Morley, P. S. (2019). Calculation of Antimicrobial Use Indicators in Beef Feedlots-Effects of Choice of Metric and Standardized Values.. Frontiers in Veterinary Science. 6, 330.
- Rovira, P., McAllister, T., Lakin, S. M., Cook, S. R., Doster, E., Noyes, N. R., ... Morley, P. S. (2019). Characterization of the Microbial Resistome in Conventional and “Raised Without Antibiotics” Beef and Dairy Production Systems. 10, 1980.
- Weinroth, M. D., Scott, H. M., Norby, B. o., Loneragan, G. H., Noyes, N. R., Rovira, P., ... Belk, K. E. (2018). Effects of Ceftiofur and Chlortetracycline on the Resistomes of Feedlot Cattle.. 84(13), e00610-e00618.
- Gold, J. R., Chaffin, K., Burgess, B. A., & Morley, P. S. (2016). Factors Associated With Nonsurvival in Foals Diagnosed With Perinatal Asphyxia Syndrome. Journal of Equine Veterinary Science. 38, 82-86.
- Gautam, R., Lahodny, G., Bani-Yaghoub, M., Morley, P. S., & Ivanek, R. (2014). Understanding the role of cleaning in the control of Salmonella Typhimurium in grower-finisher pigs: a modelling approach.. Epidemiology and Infection. 142(5), 1034-1049.
- Loneragan, G. H., Morley, P. S., Wagner, J. J., Mason, G. L., Yost, G. S., Thoren, M. A., Wittum, T. E., & Bray, T. M. (2002). Effects of feeding aspirin and supplemental vitamin E on plasma concentrations of 3-methylindole, 3-methyleneindolenine-adduct concentrations in blood and pulmonary tissues, lung lesions, and growth performance in feedlot cattle.. American Journal of Veterinary Research. 63(12), 1641-1647.
- Adam, E. N., Morley, P. S., Chmielewski, K. E., Carman, J., & Gonzales, G. (2002). Detection of cold-adapted vaccine-strain influenza virus using two commercial assays.. Equine Veterinary Journal. 34(4), 400-404.
- Loneragan, G. H., Morley, P. S., Wagner, J. J., Mason, G. L., Yost, G. S., Thoren, M. A., & Triantis, J. (2002). Time-dependent changes in plasma concentrations of 3-methylindole and blood concentrations of 3-methyleneindolenine-adduct in feedlot cattle.. American Journal of Veterinary Research. 63(4), 591-597.
Conference Papers2
- McAtee, T., Powledge, S., Pinnell, L., Morley, P., & Richeson, J. T. (2022). Modified-Live Virus Respiratory Vaccines and Bovine Respiratory Disease Influence the Respiratory Microbiome of Cattle. Journal of Animal Science. 100, 240-240.
- Morley, P. S. (2020). New insights on liver abscess syndrome in cattle using metagenomic investigations. Journal of Animal Science. 98(Supplement_4), 53-53.
researcher on
Principal Investigator1
recent teaching activities
- VLCS685 Directed Studies Instructor
- VLCS691 Research Instructor
- VLCS691 Research: In-ab Instructor
Email
pmorley@tamu.edu
First Name
Paul
Last Name
Morley
mailing address
3201 Russell Long Blvd; VERO Building, WTAMU Campus;
Canyon, TX 79015
USA
Research Areas:
Drug resistance in microorganisms,
Salmonella infections in animals,
Liver--Abscess,
Antibiotics in veterinary medicine,
Veterinary medicine,
Infection--Control,
Food--Safety measures,
Antibiotics in agriculture,
Respiratory organs--Diseases,
Microbial ecology,
Biosecurity,
Metagenomics
UN Sustainable Development Goals:
Websites
UN Sustainable Development Goals:
Research Areas: