Department Head, and University Distinguished Professor
BVSc 1970, U. Agriculture Science, India
MVSc 1973, U. Agriculture Science, India
MS 1977, Michigan St. U.
PhD 1981, Michigan St. U.
Diplomate 1981, American College of Vet. Microbiology
I serve as a liaison between Department faculty and staff and the Dean. I consult with faculty and staff on a regular basis and represent the department in the Administrative Council. Major administrative duties include the following: Guidance of all professional activities of the faculty, staff, residents and graduate students of the Department; development and implementation of Departmental policies and procedures as required by the College and the University; promotion and development of independent or collaborative research, teaching and service programs; preparation of an annual budget in consultation with Chief Financial Officer, Business Office and faculty for the Department; fiscal management and accountability of the Department; preparation of annual reports summarizing all activities of the Department; conducting regular faculty and staff meetings to facilitate faculty and staff input on various issues, and to establish better communications at all levels; performance evaluation of faculty and staff; recruitment of faculty, staff and residents to the Department; preparation of documents for tenure and/or promotion of faculty and staff; maintain Departmental inventory of equipment and space; and providing and creating opportunities for faculty and staff growth and development.
My primary research interests are to study and understand the pathogenesis of important infectious diseases of animals, and to develop strategies to protect animals from these diseases. Identification, molecular characterization and functional analysis of antigen/toxins of Streptococcus suis, Mannheimia haemolytica, and Fusobacterium necrophorum are my primary research focuses.
I coordinate and teach a portion of the professional Veterinary Bacteriology and Mycology course to sophomore veterinary students. This is a 4 credit hour lecture and laboratory course. The course is designed to provide the latest information on all facts of the microbial pathogens of animals of veterinary interest.
Harkin, K.R., Roshto, Y.M., Sullivan, J.T., Purvis, T.J., and Chengappa, M.M. 2003. Comparison of Polymerase Chain Reaction assay, Bacteriologic Culture, and Serologic Testing in Assessment of Prevalence of Urinary Shedding of Leptospires in Dogs. JAVMA, 222:1230-1233.
Staats, JJ, MM Chengappa, MC DeBey, B Fickbohm, RD Oberst. 2003. Detection of Escherichia coli Shiga toxin (stx) and enterotoxin (estA and elt) genes in fecal samples from non-diarrheic and diarrheic greyhounds. Vet. Microbiol. 94:303-312.
Nagaraja, T.G., Narayanan, S.K., Stewart, G.C., and Chengappa, M.M. 2005. Fusobacterium necrophorum Infections in Animals: Pathogenesis and Pathogenic Mechanisms. Anaerobe, 11:239-246.
Tadepalli, S., Narayanan, S., Stewart, G.C., Chengappa, M.M., and Nagaraja, T.G. 2009. Fusobacterium necrophorum: A Ruminal Bacterium that Invades Liver to Cause Abscesses in Cattle. Anaerobe, 15:36-43.
Kanwar, N., Scott, H.M., Norby, B., Loneragan, G.H., Vinasco, J., McGowan, M., Cottell, J.L., Chengappa, M.M., Bai, J., and Boerlin, P. 2013. Effects of Ceftiofur and Chlortetracycline Treatment Strategies on Antimicrobial Susceptibility and on tet(A), tet(B) and blaCMY-2 Resistance Genes Among E. coli Isolated From the Feces of Feedlot Cattle. PLoS One, 8:1-13.
Kanwar, N., Scott, H.M., Norby, B., Loneragan, G.H., Vinasco, J., Cottell, J.L., Chalmers, G., Chengappa, M.M., Bai, J., and Boerlin, P. Impact of Treatment Strategies on Cephalosporin and Tetracycline Resistance Gene Quantities in Bovine Fecal Metagenome. Scientific Reports 4:5100, 1-10.
G.R. Carter and M.M. Chengappa. Essentials of Veterinary Bacteriology and Mycology. 4th ed., Lea and Febiger, 1991.
M.M. Chengappa and D. M. Mosier. Consulting Editors. Bacterial and Fungal Diseases. In: Current Veterinary Therapy: Food Animal Practice. 4th ed., Saunders, 1998.
G.R. Carter, M.M. Chengappa and A.W. Roberts. Essentials of Veterinary Microbiology. 5th ed., Williams and Wilkins, 1995.
G.R. Carter and M.M. Chengappa. Microbial Diseases: A Veterinarian's Guide to Laboratory Diagnosis. Iowa State University press, 1993.
Scott McVey, Melissa Kennedy, and M.M. Chengappa (Editors). Veterinary Microbiology, 3rd ed., Wiley – Blackwell, 2013.