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Karen Snowden

Karen Snowden

Professor Emerita Department of Veterinary Pathobiology
Contact
KSNOWDEN@cvm.tamu.edu
9798624999
TAMU Mailstop: 4467

Research and Scholarly Interests

Parasites of public health importance, host-parasite interactions, development of animal models for the study of parasitologic diseases and treatments, and development of molecular and immunologic methods for parasitologic diagnosis.

EDUCATION

  • B.S., University of Montevallo, 1974
  • D.V.M., Auburn University, 1979
  • Ph.D., North Carolina State University, 1988

CREDENTIALS

  • founding diplomate, American College of Veterinary Microbiology (parasitology), Board Certified
  • Texas Veterinary Medical Specialty License: 0152-S
  • Infectious Disease
  • Parasitology
  • Education
  • Corapi WV, Ajithdoss DK, Snowden KF, Spaulding KA (2011). Multi-organ involvement of Heterobilharzia americana infection in a dog presented for systemic mineralization. J VET DIAGN INVEST. 4, 826-31
  • Bhattarai R, Budke CM, Carabin H, Proaño JV, Flores-Rivera J, Corona T, Cowan LD, Ivanek R, Snowden KF, Flisser A (2011). Quality of life in patients with neurocysticercosis in Mexico. AM J TROP MED HYG. 5, 782-6
  • Trainor KE, Porter BF, Logan KS, Hoffman RJ, Snowden KF (2010). Eight cases of feline cutaneous leishmaniasis in Texas. VET PATHOL. 6, 1076-81
  • Holman PJ, Snowden KF (2009). Canine hepatozoonosis and babesiosis, and feline cytauxzoonosis. VET CLIN NORTH AM SMALL ANIM PRACT. 6, 1035-53
  • Snowden KF, Lewis BC, Hoffman J, Mansell J (2009). Encephalitozoon cuniculi infections in dogs: a case series. J AM ANIM HOSP ASSOC. 5, 225-31
  • Snowden K, Bice K, Craig T, Howe L, Jarrett M, Jeter E, Kochevar D, Simpson RB, Stickney M, Wesp A, Wolf AM, Zoran D (2008). Vertically integrated educational collaboration between a college of veterinary medicine and a non-profit animal shelter. J VET MED EDUC. 4, 637-40
  • Nabity MB, Barnhart K, Logan KS, Santos RL, Kessell A, Melmed C, Snowden KF (2006). An atypical case of Trypanosoma cruzi infection in a young English Mastiff. VET PARASITOL. 3-4, 356-61
  • Phalen DN, Logan KS, Snowden KF (2006). Encephalitozoon hellem infection as the cause of a unilateral chronic keratoconjunctivitis in an umbrella cockatoo (Cacatua alba). VET OPHTHALMOL. 1, 59-63
  • Hoevers JD, Snowden KF (2005). Analysis of the ITS region and partial ssu and lsu rRNA genes of Blastocystis and Proteromonas lacertae. PARASITOLOGY. Pt 2, 187-96
  • Waters PF, Snowden KF, Holman PJ (2004). A comparison of homologous genes encoding aminopeptidases among bird and human Encephalitozoon hellem isolates and a rabbit E. cuniculi isolate. PARASITOL RES. 5, 410-8
  • Hoevers J, Snowden K, Graham S, Barling K (2003). A comparison of PCR and in vitro culture for detection of Tritrichomonas foetus in bovine preputial scrapings. J EUKARYOT MICROBIOL. 699, 700
  • Tomaszewski EK, Logan KS, Snowden KF, Kurtzman CP, Phalen DN (2003). Phylogenetic analysis identifies the 'megabacterium' of birds as a novel anamorphic ascomycetous yeast, Macrorhabdus ornithogaster gen. nov., sp. nov. INT J SYST EVOL MICROBIOL. Pt 4, 1201-5
  • Snowden KF, Logan KS, Vinson SB (2002). Simple, filter-based PCR detection of Thelohania solenopsae (Microspora) in fire ants (Solenopsis invicta). J EUKARYOT MICROBIOL. 6, 447-8
  • Millership JJ, Chappell C, Okhuysen PC, Snowden KF (2002). Characterization of aminopeptidase activity from three species of microsporidia: Encephalitozoon cuniculi, Encephalitozoon hellem, and Vittaforma corneae. J PARASITOL. 5, 843-8
  • Millership JJ, Chappell CL, Okhuysen PC, Snowden KF (2002). Characterization of a cytosolic aminopeptidase from Encephalitozoon intestinalis. PARASITOLOGY. Pt 1, 1-7
  • Barling KS, Lunt DK, Snowden KF, Thompson JA (2001). Association of serologic status for Neospora caninum and postweaning feed efficiency in beef steers. J AM VET MED ASSOC. 9, 1259-62
  • Snowden KF, Logan K, Phalen DN (2000). Isolation and characterization of an avian isolate of Encephalitozoon hellem. PARASITOLOGY. Pt 1, 9-14
  • Snowden K, Logan K, Blozinski C, Hoevers J, Holman P (2000). Restriction-fragment-length polymorphism analysis of small-subunit rRNA genes of Blastocystis isolates from animal hosts. PARASITOL RES. 1, 62-6
  • Hoevers J, Holman P, Logan K, Hommel M, Ashford R, Snowden K (2000). Restriction-fragment-length polymorphism analysis of small-subunit rRNA genes of Blastocystis hominis isolates from geographically diverse human hosts. PARASITOL RES. 1, 57-61
  • Snowden K, Logan K (1999). Molecular identification of encephalitozoon hellem in an ostrich. AVIAN DIS. 4, 779-82
  • Snowden K, Logan K, Didier ES (1999). Encephalitozoon cuniculi strain III is a cause of encephalitozoonosis in both humans and dogs. J INFECT DIS. 6, 2086-8
  • Young KE, Garza V, Snowden K, Dobson RJ, Powell D, Craig TM (1999). Parasite diversity and anthelmintic resistance in two herds of horses. VET PARASITOL. 2-3, 205-14
  • Cole DJ, Snowden K, Cohen ND, Smith R (1999). Detection of Cryptosporidium parvum in horses: thresholds of acid-fast stain, immunofluorescence assay, and flow cytometry. J CLIN MICROBIOL. 2, 457-60
  • Pulparampil N, Graham D, Phalen D, Snowden K (1998). Encephalitozoon hellem in two eclectus parrots (Eclectus roratus): identification from archival tissues. J EUKARYOT MICROBIOL. 6, 651-5
  • Cole DJ, Cohen ND, Snowden K, Smith R (1998). Prevalence of and risk factors for fecal shedding of Cryptosporidium parvum oocysts in horses. J AM VET MED ASSOC. 9, 1296-302
  • Buback JL, Schulz KS, Walker MA, Snowden KF (1996). Magnetic resonance imaging of the brain for diagnosis of neurocysticercosis in a dog. J AM VET MED ASSOC. 11, 1846-8
  • Corapi WV, Snowden KF, Rodrigues A, Porter BF, Buote MA, Birch SM, Jackson ND, Eden KB, Whitley DB, Mansell J, Edwards JF, Hardy J, Chaffin MK (2012). Natural Heterobilharzia americana infection in horses in Texas. VET PATHOL. 3, 552-6
  • Corapi WV, Ajithdoss DK, Snowden KF, Spaulding KA (2011). Multi-organ involvement of Heterobilharzia americana infection in a dog presented for systemic mineralization. J VET DIAGN INVEST. 4, 826-31
  • Carlson KL, Chaffin MK, Corapi WV, Snowden KF, Schmitz DG (2011). Starry sky hepatic ultrasonographic pattern in horses. VET RADIOL ULTRASOUND. 5, 568-72
  • Jackson EE, Ashley TC, Snowden KF, Gresham VC, Budke CM, Eichelberger BM, Taylor DA (2011). Performance and longevity of a novel intraosseous device in a goat (Capra hircus) model. J AM ASSOC LAB ANIM SCI. 3, 365-73
  • Cardenas VM, Mena KD, Ortiz M, Karri S, Variyam E, Behravesh CB, Snowden KF, Flisser A, Bristol JR, Mayberry LF, Ortega YR, Fukuda Y, Campos A, Graham DY (2010). Hyperendemic H. pylori and tapeworm infections in a U.S.-Mexico border population. PUBLIC HEALTH REP. 3, 441-7
  • Kjos SA, Gillespie JJ, Olson JK, Snowden KF (2009). Detection of Blastocrithidia spp. (Kinetoplastida: Trypanosomatidae) in Chagas disease vectors from Texas, USA. VECTOR BORNE ZOONOTIC DIS. 2, 213-6
  • Kjos SA, Snowden KF, Olson JK (2009). Biogeography and Trypanosoma cruzi Infection Prevalence of Chagas Disease Vectors in Texas, USA. VECTOR BORNE ZOONOTIC DIS. 1, 41-50
  • Ferrell ST, Snowden K, Marlar AB, Garner M, Lung NP (2007). Fatal hemoprotozoal infections in multiple avian species in a zoological park. J ZOO WILDL MED. 2, 309-16
  • Jordan CN, Zajac AM, Snowden KS, Lindsay DS (2006). Direct agglutination test for Encephalitozoon cuniculi. VET PARASITOL. 3-4, 235-40
  • Milks ML, Sokolova YY, Isakova IA, Fuxa JR, Mitchell F, Snowden KF, Vinson SB (2004). Comparative effectiveness of light-microscopic techniques and PCR in detecting Thelohania solenopsae (Microsporidia) infections in red imported fire ants (Solenopsis invicta). J EUKARYOT MICROBIOL. 2, 187-91
  • Chen JS, Snowden K, Mitchell F, Sokolova J, Fuxa J, Bradleigh Vinson S (2004). Sources of spores for the possible horizontal transmission of Thelohania solenopsae (Microspora: Thelohaniidae) in the red imported fire ants, Solenopsis invicta. J INVERTEBR PATHOL. 3, 139-45
  • Bertram, Hartup, SNOWDEN, SA Hamer, GL Hamer (2015). Conservation implications for coccidian and vector-borne parasites in the endangered whooping crane (Grus americana) PLOS-ONE.
  • R Curtis-Robles, KF Snowden, B Dominguez, L Dinges, SA Hamer (2017). Epidemiology and molecular typing of Trypanosoma cruzi in naturally infected dogs and associated triatomine vectors in Texas, USA PLOS NEGLECTED TROPICAL DISEASES. 1,
  • Rodriguez, Lewis, Snowden (2014). Distribution and characterization of Heterobilharzia americana in dogs in Texas VETERINARY PARASITOLOGY.
  • Rodriguez, Snowden (2013). Haemoabdomen secondary to granulomatous periarteritis due to parasitism with Halicephalobus gingivalis in a mare EQUINE VETERINARY EDUCATION.
  • Tenney, Curtis, Snowden, Hamer (2014). Shelter dogs as sentinels for widespread Trypanosoma cruzi transmission across Texas EMERGING INFECTIOUS DISEASES.
  • Corapi, Snowden, Eden Edwards (2014). Heterobilharzia americana infection and congestive heart failure in a LLama (Lama glama) VETERINARY PATHOLOGY.
  • snowden (2014). Keep Respiratory Parasites on your Radar VETERINARY MEDICINE.
  • Kjos, Marcet, Yabsley, Kitron, Snowden, Logan, Barnes, Dotson (2013). Identification of blood meal sources and Trypanosoma cruzi infection in triatomine bugs from residential settings in south central USA JOURNAL OF MEDICAL ENTOMOLOGY.
  • KF Snowden, RC Krecek, DD Bowman (2017). AAVP Recommendations for core competency standards relating to parasitological knowledge and skills JOURNAL OF VETERINARY MEDICAL EDUCATION. 4, 344-348
  • MM Pereira, K Snowden, SE Little, RC Krecek (2014). Parasitological Procedures, Skills and Areas of Knowledge used by Small Animal Practitioners in North America JOURNAL OF VETERINARY MEDICAL EDUCATION. 4, 323-330
  • CL Hodo, DB Whitley, SA Hamer, WV Corapi, K Snowden, JJ Heatley, AR Hoffman (2016). Histopathologic and molecular characterization of Sarcocystis calchasi Encephalitis in White-winged Doves (Zenaida asiatica) and Eurasian Collared Doves (Streptopelia decaocto), East-central Texas, USA JOURNAL OF WILDLIFE DISEASES. 2, 395-399
  • GD Stentiford, 14 middle authors including K Snowden, L Solter (2016). Microsporidia - Emergent Pathogens in the Global Food Chain TRENDS IN PARASITOLOGY.
  • Rodriguez, Camp, Lewis, Snowden (2016). Identification of Heterobilharzia americana in a dog residing in Indiana with no travel history JAVMA. 7, 827-830
  • MR Bertram, GL Hamer, KB Hartup, KF Snowden, SA Hamer (2017). Haemosporida prevalence and diversity are similar in endangered wild whooping cranes (Grus americana) and sandhill cranes (Grus canadensis) PARASITOLOGY. 5, 629-640
  • MR Bertram, SA Hamer, BK Hartup, GL Hamer (2016). A novel Haemosporida clade at the rank of genus in North American cranes (Aves: Gruiformes) MOLECULAR PHYLOGENETICS AND EVOLUTION., 73-79
  • Minard HM, AK Daniel, RR Pool, KF Snowden, GJ Levine (2017). Pathology in Practice: Cutaneous Lesion in a Cat JAVMA. 1, 57-59
  • Beckwith-Cohen, Gasper, Bentley, Gittelman, Ellis, SNOWDEN, Shock Yabsley Dubielzig (2016). Protozoal Infections of the Cornea and Conjunctiva in dogs associated with chronic ocular surface disease VETERINARY OPHTHALMOLOGY. 3, 206-213

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