Heather Michelle Fritz

Heather Michelle Fritz

Associate Professor

California Animal Health and Food Safety Lab
Pathology, Microbiology & Immunology


Licenses
Diplomate of the American College of Veterinary Microbiology (Bacteriology/Mycology)
Education
1999, BS, University of Arizona, Tucson, AZ
1999, BSA, University of Arizona, Tucson, AZ
2005, DVM, University of California, Davis, CA
2011, PhD, University of California, Davis, CA
2008, UC Davis VMTH,
2010, UC Davis, Center for Comparative Medicine,
2014, UC Davis VMTH,
Active Research Grants
Co-Principal Investigator, CAHFS Microbiology Vet-LIRN support, Kathy Kurth (Principal Investigator), PHS Food and Drug Administration (FDA)
Co-Principal Investigator, Evaluation of an Antibiogram Framework from Commercial Dairy Farms in California for Bovine Respiratory Disease Bacterial Pathogens, Richard Pereira (Principal Investigator), California Department of Food and Agriculture
Co-Principal Investigator, Preweaned dairy calf health management on conventional and organic dairies in California: Determining management practices that require intervention, Munashe Chigerwe (Principal Investigator), California Department of Food and Agriculture
Principal Investigator, Investigating Alternative Methods for Regression Analysis for MIC Data of Bacterial Bovine Respiratory Disease Pathogens, (Principal Investigator), California Department of Food and Agriculture
Co-Investigator, Field trial to evaluate the effect of a Mannheimia haemolytica/Pasteurella multocida vaccine on respiratory disease incidence and growth , Fauna Smith (Principal Investigator), Center for Food Animal Health
Most Recent Five Book Chapters
2015 Fritz HM, Conrad PA: Role of cats in Toxoplasma transmission and disease, Frederic Beugnet, Lenaig Halos, (ed), Parasitoses and Vectorborne Diseases of Cats, Lyon, France. .
Research Focus
Molecular characterization of Toxoplasma gondii oocysts to understand oocyst development and environmental resistance.
Specialty Focus
Protozoal parasitology, Clinical and diagnostic parasitology, Clinical and diagnostic microbiology
Ten Recent Publications

2024
Heckman TI, Yazdi Z, Older CE, Griffin MJ, Waldbieser GC, Chow AM, Medina Silva I, Anenson KM, García JC, LaFrentz BR, Slavic D, Toohey-Kurth KL, Yant P, Fritz HM, Henderson EE, McDowall R, Cai H, Adkison M, Soto E
Redefining piscine lactococcosis.

2024
Abad C, Fritz H, Gonzales-Viera O
Fatal septicemia in 2 South American camelids with caudal C3-pyloric-duodenal adenocarcinoma.

2024
Morgan Bustamante BL, Chigerwe M, Martínez-López B, Aly SS, McArthur G, ElAshmawy WR, Fritz H, Williams DR, Wenz J, Depenbrock S
Antimicrobial Susceptibility in Respiratory Pathogens and Farm and Animal Variables in Weaned California Dairy Heifers: Logistic Regression and Bayesian Network Analyses.

2024
Depenbrock S, Schlesener C, Aly S, Williams D, ElAshmawy W, McArthur G, Clothier K, Wenz J, Fritz H, Chigerwe M, Weimer B
Antimicrobial Resistance Genes in Respiratory Bacteria from Weaned Dairy Heifers.

2023
Hoyos-Jaramillo A, Garzon A, Fritz HM, Byrne BA, Miramontes CC, Lehenbauer TW, Aly S, Pereira RV
Agreement among deep nasopharyngeal sampling culture results for 3 different swab types in preweaning dairy calves.

2023
Garzon A, Hoyos-Jaramillo A, Hustad S, Byrne BA, Fritz HM, Lehenbauer TW, Aly S, Pereira R.
In vitro evaluation of the effect of transport medium, temperature, and time on the recovery of Mannheimia haemolytica and Pasteurella multocida

2023
Burbick CR, Fajt VR, Frey E, Fritz H^, Goodman LB, Lorenz C, Lubbers BV, Marshall E, Rankin SC, Silva M
Benefits and challenges of creating veterinary antibiograms for empiric antimicrobial selection in support of antimicrobial stewardship and advancement of one-health goals

2023
Lorenz C, Silva M, Frey E, Fritz H^, Marshall E
Antibiograms as one-health tools for antimicrobial stewardship: California's experience with livestock antibiogram development

2022
Fritz HM, Pereira RV, Toohey-Kurth K, Marshall E, Tucker J, Clothier KA
Salmonella enterica Serovar Dublin from Cattle in California from 1993-2019: Antimicrobial Resistance Trends of Clinical Relevance

2021
Depenbrock S, Aly S, Wenz J, Williams D, ElAshmawy W, Clothier K, Fritz H, McArthur G, Heller M, Chigerwe M
In-vitro antibiotic resistance phenotypes of respiratory and enteric bacterial isolates from weaned dairy heifers in California