Search Results - "Graczyk, T.K."

Co-localized Crassostrea virginica and Crassostrea ariakensis Oysters differ in bioaccumulation, retention and depuration of microbial indicators and human enteropathogens by Nappier, S.P, Graczyk, T.K, Tamang, L, Schwab, K.J

“…To evaluate the bioaccumulation, retention and depuration rates of nine pathogens and surrogates when two oyster species were co-localized in tanks of…”
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Molecular markers and sentinel organisms for environmental monitoring by Graczyk, T.K., Conn, D.B.

“…Molecular methods are useful for both to monitor anthropogenic viral, bacterial, and protozoan enteropathogens, and to track pathogen specific markers in a…”
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Therapeutic efficacy of hyperimmune bovine colostrum treatment against clinical and subclinical Cryptosporidium serpentis infections in captive snakes by Graczyk, T.K, Cranfield, M.R, Helmer, P, Fayer, R, Bostwick, E.F

“…Therapy based on the protective passive immunity of Hyperimmune Bovine Colostrum (HBC) (raised against Cryptosporidium parvum in dairy cows immunized during…”
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Intestinal Cryptosporidium sp. infection in the Egyptian tortoise, Testudo kleinmanni by Graczyk, T.K., Cranfield, M.R., Mann, J., Strandberg, J.D.

“…An adult Egyptian tortoise ( Testudo kleinmanni) presented with clinical signs of enteritis and died 5 weeks after initiation of antibiotic therapy…”
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Oocysts of Cryptosporidium from snakes are not infectious to ducklings but retain viability after intestinal passage through a refractory host by Graczyk, T.K., Cranfield, M.R., Fayer, R.

“…Six 2-week-old Cryptosporidium-free Peking ducklings ( Anas platyrhynchos) each received 2.0×10 6 viable Cryptosporidium serpentis oocysts from 6 naturally…”
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Genetic diversity of Cryptosporidium spp. in captive reptiles by Xiao, L, Ryan, U.M, Graczyk, T.K, Limor, J, Li, L, Kombert, M, Junge, R, Sulaiman, I.M, Zhou, L

“…The genetic diversity of Cryptosporidium in reptiles was analyzed by PCR-restriction fragment length polymorphism and sequence analysis of the small subunit…”
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Prevalence of Cryptosporidium,Giardia and Eimeria infections in post-weaned and adult cattle on three Maryland farms by Fayer, R, Trout, J.M, Graczyk, T.K, Lewis, E.J

“…The prevalence of Cryptosporidium, Giardia and Eimeria, in healthy, asymptomatic, post-weaned and mature cattle was investigated on three Maryland farms. One…”
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Cryptosporidium parvum and Giardia lamblia recovered from flies on a cattle farm and in a landfill by Szostakowska, B, Kruminis-Lozowska, W, Racewicz, M, Knight, R, Tamang, L, Myjak, P, Graczyk, T.K

“…Filth flies associated with a cattle barn and a municipal landfill were tested positive by combined immunofluorescent antibody and fluorescent in situ…”
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Survival of infectious Cryptosporidium parvum oocysts in seawater and eastern oysters (Crassostrea virginica) in the Chesapeake Bay by Fayer, R. (ARS, USDA, Beltsville, MD.), Graczyk, T.K, Lewis, E.J, Trout, J.M, Farley, C.A

“…Oocysts of Cryptosporidium parvum placed in artificial seawater at salinities of 10, 20, and 30 ppt at 10 degrees C and at 10 ppt at 20 degrees C were…”
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Identification of Cryptosporidium felis in a cow by morphologic and molecular methods by Bornay-Llinares, F.J, Silva, A.J. da, Moura, I.N.S, Myjak, P, Pietkiewicz, H, Kruminis-Lozowska, W, Graczyk, T.K, Pieniazek, N.J

“…Apicomplexan Cryptosporidium parasites infect a wide range of vertebrate hosts. While some species are limited to a single host group, such as Cryptosporidium…”
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Giardia sp. cysts and infectious cryptosporidium parvum oocysts in the feces of migratory Canada geese (Branta canadensis) by Graczyk, T.K. (John Hopkins University, Baltimore, MD.), Fayer, R, Trout, J.M, Lewis, E.J, Farley, C.A, Sulaiman, I, Lal, A.A

“…Fecal droppings of migratory Canada geese, Branta canadensis, collected from nine sites near the Chesapeake Bay (Maryland), were examined for the presence of…”
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Recovery of waterborne, Cryptosporidium parvum oocysts by freshwater benthic clams (Corbicula fluminea) by Graczyk, T.K, Fayer, R, Cranfield, M.R, Conn, D.B

“…Asian freshwater clams, Corbicula fluminea, exposed for 24 h to 38 liters of water contaminated with infectious Cryptosporidium parvum oocysts (1.00 x 10(6)…”
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Cryptosporidium serpentis Oocysts and Microsporidian Spores in Feces of Captive Snakes by Graczyk, Thaddeus K, Cranfield, Michael R

“…Fecal smears of 90 snakes, 29 lizards, and 8 turtles and tortoises were tested for Cryptosporidium spp. oocysts and microsporidian spores. Microsporidian…”
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Potential role of the Eastern oyster, Crassostrea virginica, in the epidemiology of Cryptosporidium parvum by Fayer, R. (Immunology and Disease Resistance Laboratory, ARS, USDA, Beltsville, MD.), Farley, C.A, Lewis, E.J, Trout, J.M, Graczyk, T.K

“…Oysters were placed in an aquarium containing artificial seawater, and Cryptosporidium parvum oocysts were added. Oocysts were later found in the gill…”
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Detection of Cryptosporidium oocysts and Giardia cysts in the tissues of eastern oysters (Crassostrea virginica) carrying principal oyster infectious diseases by Graczyk, T.K, Farley, C.A, Fayer, R, Lewis, E.J, Trout, J.M

“…The potential cross-reactivity of the combined Cryptosporidium/Giardia direct immunofluorescence antibodies (IFA) of MERIFLUOR™ and HYDROFLUOR™-COMBO tests was…”
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Diagnosis of subclinical cryptosporidiosis in captive snakes based on stomach lavage and cloacal sampling by Graczyk, T.K., Owens, R., Cranfield, M.R.

“…The applicability of stomach lavage and cloacal swab techniques for diagnosis of subclinical cryptosporidiosis were tested in eight captive snakes…”
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Viability and infectivity of Cryptosporidium parvum oocysts are retained upon intestinal passage through a refractory avian host by GRACZYK, T. K, CRANFIELD, M. R, FAYER, R, ANDERSON, M. S

“…Six Cryptosporidium-free Peking ducks (Anas platyrhynchos) were each orally inoculated with 2.0 X 10(6) Cryptosporidium parvum oocysts infectious to neonatal…”
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Gaseous disinfection of Cryptosporidium parvum oocysts by FAYER, R, GRACZYK, T. K, CRANFIELD, M. R, TROUT, J. M

“…Purified oocysts of Cryptosporidium parvum suspended in approximately 400 microliters of phosphate-buffered saline or deionized water in microcentrifuge tubes…”
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In vitro interactions of Asian freshwater clam (Corbicula fluminea) hemocytes and Cryptosporidium parvum oocyts by Graczyk, T.K. (Johns Hopkins University, Baltimore, MD.), Fayer, R, Cranfield, M.R, Conn, D.B

“…Corbicula fluminea hemocytes phagocytosed infectious oocysts of Cryptosporidium parvum in vitro. After 15, 30, 60, 90, and 120 min of incubation, averages of…”
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Multiple heterogenous isolates of Crytosporidium serpentis from captive snakes are not transmissible to neonatal BALB/c mice (Mus musculus) by Fayer, R, Graczyk, T.K, Cranfield, M.R

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