Food Science & Technology: Personnel

Ynes Ortega

 

Description of Research Interests

• Parasitology
• Detection of human and animal pathogenic parasites in food, biological and environmental samples; pathogenesis of coccidian parasites with emphasis on Crytosporidium parvum and Cyclospora cayetanensis
• Methods for parasites inactivation in food products

Invention Disclosures and Discoveries

• Monoclonal antibodies unique to Entamoeba histolytica trophozoite determinants. Invention conceived on May 16, 1988. University of Arizona, UP #920. Licensed to Meridian Diagnostics, Inc.
• Monoclonal antibodies unique to Trichomonas vaginalis trophozoite determinants. Invention conceived on Dec. 23, 1988. University of Arizona, UP #922. Licensed to Meridian Diagnostics, Inc.
• Discovery of a new coccidian parasite in humans: Cyclospora cayetanensis. Organisms deposited at the U.S. National Museum (USNM) Parasite Collection. 1994. Beltsville, Maryland. National Parasite Accession #83416 document #79; vial (MK161F).

Selected Recent Publications

Huamanchay, O., L. Genzlinger, M. Iglesias, and Y. R. Ortega. 2004. Ingestion of Cryptosporidium oocysts by Caenorhabditis elegans. J. Parasitol. 90:1176-1178.

Saavedra, G. M. and Y. R. Ortega. 2004. Seroprevalence of Toxoplasma gondii in swine from slaughterhouses in Lima , Peru , and Georgia , USA . J. Parasitol. 90:902-904.

Sathyanarayanan, L. and Y. R. Ortega. 2004. Effects of pesticides on sporulation of Cyclospora cayetanensis and viability of Cryptosporidium parvum. J. Food Prot. 67:1044-1049.

Ortega, Y. R. and D. Bonavia. 2003. Cryptosporidium parvum and Giardia lamblia in ancient Peruvian coprolites. J. Parasitol. 89:635-636.

Bern, C., Y. Ortega, W. Checkley, J. M. Roberts, A. G. Lescano, L. Cabera, M. Verastegui, R. E. Black, C. Sterling, and R. H. Gilman. 2002. Epidemiological differences between cyclosporiasis and cryptosporidiosis in a cohort of Peruvian children. Emerg. Infect. Dis. 8:581-585.

Adam, R.D., Y. R. Ortega, R. H. Gilman, and C. R. Sterling. 2000. Intervening transcribed spacer region 1 variability in Cyclospora cayetanensis. J. Clin. Microbiol. 38:2339-2343.

Eberhard, M. L., Y. R. Ortega, D. E. Hanes, E. K. Nace, R. Q. Do, M. G. Robl, K. Y. Won, C. Gavidia, N. L. Sass, K. Mansfield, A. Gozalo, J. Griffiths, R. Gilman, C. R. Sterling, and M. J. Arrowood 2000. Attempts to establish experimental Cyclospora cayetanensis infection in laboratory animals. J. Parasitol. 86:577-582.

Eberhard, M. L. Y. Ortega, S. Dial, C. A. Schiller, A. Q. Sears, and E. Greiner. 2000. Ocular Onchocerca infections in two dogs in Western United States. Vet. Parasitol. 99:333-338.

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