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Cama, V.A., C. Bern, J. Roberts, L. Cabrera, C.R. Sterling, Y. Ortega, R.H. Gilman, and L.H. Xiao. 2008. Cryptosporidium species and subtypes and clinical manifestations in children,
Peru
. Emerg. Infect. Dis. 14:1567-1574.
Feng, Y.Y., Y. Ortega, V. Cama, J. Terrell, and L.H. Xiao. 2008. High intragenotypic diversity of Giardia duodenalis in dairy cattle on three farms. Parasitol. Res. 103:87-92.
Mundaca, C.C., P.A. Torres-Stimming, R.V. Araujo-Castillo, M. Moran, D.J. Bacon, Y. Ortega, R.H. Gilman, and D.L. Blazes. 2008. Use of PCR to improve diagnostic yield in an outbreak of cyclosporiasis in
Lima
,
Peru
. Trans. Royal Soc. Trop. Med. Hyg. 102:712-717.
Ortega, Y.R. 2008. Foodborne diseases. Emerg. Infect. Dis. 14:1181.
Ortega, Y.R., A. Mann, M.P.Torres, and V. Cama. 2008. Efficacy of gaseous chlorine dioxide as a sanitizer against Cryptosporidium parvum, Cyclospora cayetanensis, and Encephalitozoon intestinalis on produce. J. Food Prot. 71:2410-2414.
Cama, V.A., J. Pearson, L. Cabrera, L. Pacheco, R. Gilman, S. Meyer, Y. Ortega, and L. Xiao. 2007. Transmission of Enterocytozoon bieneusi between a child and guinea pigs. J. Clin. Microbiol. 45:2708-2710.
Cama, V.A., J.M. Ross, S. Crawford, V. Kawai, R. Chavez-Valdez, D. Vargas, A. Vivar, E. Ticona, M. Navincopa, J. Williamson, Y. Ortega, R.H. Gilman, C. Bern, and L.H. Xiao. 2007. Differences in clinical manifestations among Cryptosporidium species and subtypes in HIV-infected persons. J. Infect. Dis. 196:684-691.
Feng, Y.Y., Y. Ortega, G.S. He, P. Das, M.Q. Xu, X.C. Zhang, R. Fayer, W. Gatei, V. Cama, and L.H. Xiao. 2007. Wide geographic distribution of Cryptosporidium bovis and the deer-like genotype in bovines. Vet. Parasitol. 144:1-9.
Ortega, Y.R., M.P. Torres, and K.D. Mena. 2007. Presence of Neospora caninum specific antibodies in three dairy farms in
Georgia
and two in
Texas
. Vet. Parasitol. 144:353-355.
Ortega, Y.R., M.P. Torres, S. Van Exel, L. Moss, and V. Cama. 2007. Efficacy of a sanitizer and disinfectants to inactivate Encephalitozoon intestinalis spores. J. Food Prot. 70:681-684.
Xiao, L.H., V.A. Cama, L. Cabrera, Y. Ortega, J. Pearson, and R.H. Gilman. 2007. Possible transmission of Cryptosporidium canis among children and a dog in a household. J. Clin. Microbiol. 45:2014-2016.
Ortega, Y.R. 2006. Foodborne Parasites. Springer Science and Business Media, Inc.,
New York
,
N.Y.
289 pp.
Cama, V.A., M.J. Arrowood, Y.R. Ortega, and L.H. Xiao. 2006. Molecular characterization of the Cryptosporidium parvum
IOWA
isolate kept in different laboratories. J. Eukaryotic Microbiol. 53:S40-S42.
Cama, V., R.H. Gilman, A. Vicar, E. Ticona, Y. Ortega, C. Bern, and L.H. Xiao. 2006. Mixed Cryptosporidium infections and HIV. Emerg. Infect. Dis. 12:1025-1028.
Erickson, M.C. and Y.R. Ortega. 2006. Inactivation of protozoan parasites in food, water, and environmental systems. J. Food Prot. 69:2786-2808.
Ortega, Y.R. and J. Liao. 2006. Efficacy of microwave heating to inactivate Cyclospora cayetanensis and Cryptosporidium parvum oocysts. J. Food Prot. 68:1957-1960.
Sathyanarayanan, L. and Y. Ortega. 2006. Effects of temperature and different food matrices on Cyclospora cayetanensis oocyst sporulation. J. Parasitol. 92:218-222.
Torres, M.P. and Y.R. Ortega. 2006. Neospora caninum antibodies in commercial fetal bovine serum. Vet. Parasitol. 140:352-355.
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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