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Ronald Fayer
Environmental Microbial Safety

Zool
rfayer@anri.barc.usda.gov
Phone: (301) 504-8750
Fax: (301) 504-6608
Room 100
10300 BALTIMORE BLVD
BLDG 173 BARC-EAST
BELTSVILLE, MD, 20705-0000

Project List

Publications
item On Farm Protozoan Pathogens: the Prevalence of Zoonotic Cryptosporidium and Giardia- (30-Jun-04)
item Prevalence of Crytosporidium in Cattle in the United States- (25-May-04)
item Zoonotic Protozoa: from Land to Sea- (21-May-04)
item Sarcocystis in Human Infection- (24-Feb-04)
item Infectivity of Microsporidia Spores Stored in Seawater at Environmental Temperatures- (01-Dec-03)
item Sarcocystis of Humans- (01-Oct-03)
item Zoonotic Protists in the Marine Environment- (30-Aug-03)
item Comparison of Microscopy and Pcr for Detection of Three Species of Encephalitozoon in Feces- (15-Aug-03)
item Detection of Encephalitozoon Hellem in Feces of Experimentally Infected Chickens- (15-Aug-03)
item Waterborne Zoonotic Protozoa- (03-Jul-03)
item Cryptosporidium - a Waterborne Zoonotic Parasite- (01-Jun-03)
item First Detection of Microsporidia in Dairy Calves in North America- (27-Mar-03)
item Cryptosporidium Found in the Watershed, Estuarine, and Coastal Waters of the United States- (10-Mar-03)
item Atlantic and Gulf Coast Multi-State Study of Cryptosporidium in Shellfish- (10-Mar-03)
item Animal Reservoirs, Vectors, and Transmission of Pathogenic Protozoa- (01-Nov-02)
item Concerns Related to Protozoan and Helminth Parasites in Biosolids and Animal Wastes- (27-Aug-02)
item Contamination of Atlantic Coast Commercial Shellfish- (14-Aug-02)
item Cryptosporidium and Other Opportunistic Protozoans Potentially Transmitted from Animals to Humans- (24-Jun-02)
item The First Report of Enterocytozoon Bieneusi Parasites in Wildlife: Implications for Public Health and Transmission to Livestock- (07-Jun-02)
item Temporal Variability of Cryptosporidium in the Chesapeake Bay- (04-Jun-02)
item Genetic, Biochemical, and Biological Factors to Consider When Naming New Species of Cryptosporidium- (16-May-02)
item Cryptosporidium: from Disease to Molecules- (12-Apr-02)
item A Synopsis of Cryptosporidium Research in Shellfish- (24-Jul-01)
item Enteric Coccidial Infections in Humans- (06-Jul-01)
item Cryptosporidium Canis Is Infectious for Dogs, Humans, and Cattle- (30-Jun-01)
item Cryptosporidium Canis N. Sp. from Domestic Dogs- (14-Jun-01)
item Epidemiology of Cryptosporidium Parvum;transmission, Detection and Identification- (04-Sep-00)
item Global Change and Emerging Infectious Diseases- (26-Jun-00)
item Prevalence of Cryptosporidium, Eimeria and Giardia Infections in Post Weaned and Adult Cattle on Three Maryland Farms- (08-May-00)
item Rotifers Ingest Oocysts of Cryptosporidium Parvum- (07-Oct-99)
item Prevention and Control of Cryptosporidium Parvum Infection in Livestock- (06-Oct-99)
item Human and Animal Pathogens in the Chesapeake Bay Watershed: Cryptosporidiumand Pfiesteria- (26-Sep-99)
item Cryptosporidium Parvum Identification in Oysters from Commercial Harvestingsites in the Chesapeake Bay- (02-Aug-99)
item Zoonotic Pathogens from Manure: Transport and Fate- (19-Nov-03)
item Molecular Characterization of Enterocytozoon Bieneusi in Cattle Indicates That Only Some Isolates Have Zoonotic Potentials- (01-Nov-03)
item Cryptosporidium Taxonomy: Recent Advances and Implications for Public Health- (01-Nov-03)
item Triosephosphate Isomerase Gene Characterization and Potential Zoonotic Transmission of Giardia Duodenalis- (01-Sep-03)
item Molecular Characterization of Microsporidia Indicates That Fur-Bearing Mammals Can Be a Source of Human Pathogenic Enterocytozoon Bieneusi- (26-May-03)
item Epidemiology of Zoonotic Protozoa in Dairy Cattle and Wildlife in Eastern United States- (14-May-03)
item U.S. East and Gulf Coast Shellfish Study - the Rest of the Story- (12-Mar-03)
item Real Time Pct for the Detection of Cryptosporidium Parvum- (01-Oct-01)
item Effects of Gamma Irradiation on the Survival of Encephalitozoon Intestinalis Spores- (06-Jul-01)
item Infectivity of Microsporidia for Food Animals: Livestock and Poultry- (30-Jun-01)
item Cryptosporidium, Giardia, and Microsporidia in Beef Cattle in Maryland- (30-Jun-01)
item Application of Raman Spectroscopy to Analyze the Cryptosporidium Parvum Oocyst Wall and Suture Constituents- (01-Mar-01)
item Susceptibility of the Chesapeake Bay to Environmental Contamination with Cryptosporidium Parvum- (01-Feb-00)
item Cryptosporidium Parvum in Calves; Changes in Lymphoid Tissue after Primary Or Secondary Infection- (27-Aug-99)
item Chlorine Disinfection of Recreational Water for Cryptosporidium Parvum- (20-May-99)
item Genetic Characterization of Cryptosporidium Isolates from Ringed Seals (Phoca Hispida) in Northern Quebec, Canada- (12-Jul-04)
item Prevalence of Enterocytozoon Bieneusi in Post-Weaned Dairy Calves in the Eastern United States- (16-Apr-04)
item Giardia Genotypes in Coyotes from Northeastern Pennsylvania- (15-Mar-04)
item Giardia Genotypes in Post-Weaned Dairy Calves in the Eastern United States- (08-Mar-04)
item Identifying and Quantifying Sources of Parasistic Organisms- (01-Feb-04)
item First Report of Giardia in Coyote- (01-Nov-03)
item Identification of Assemblage a Giardia in White-Tailed Deer- (07-Aug-03)
item Genotype of Giardia in Dairy Calves and Pastureland Wildlife- (14-May-03)
item Molecular Epidemiology of Zoonotic Pathogens in Dairy Cattle and Wildlife in Eastern United States- (01-May-03)
item Prevalence and Genotypes of Giardia Sp. in Dairy Calves in Seven East Coast States- (01-Apr-03)
item Rotifers Ingest Giardia Cysts- (01-Jul-02)
item Molecular Epidemiology of Animal Enteroviruses: Implications for Their Use As Markers for Environmental Fecal Contamination- (28-Mar-02)
item Bovine Enteroviruses Are Abundant in the Environment and Can Serve As a Marker for Fecal Contamination- (14-Dec-01)
item Effects of Organic Acids and Hydrogen Peroxide on the Survival of Cryptosporidium Parvum Oocysts in Unpasteurized Fruit Juices- (01-Sep-01)
item Treatment of Cryptosporidium Parvum Sporozoites with Antibodies to a Recombinant Cp47 Antigen Inhibits Invitro Parasite Development- (01-Aug-01)
item Genetic Variation in Giardia Duodenalis from Human, Cattle, Dogs, and Aquatic Wildlife at the Triose Phosphate Isomerase (Tpi) Gene Locus- (01-Jul-01)
item Inhibition of Development of Cryptosporidium Parvum in Fresh Fruit Juices by Chemical Treatment- (01-Jun-01)
item Western Regional Research Project W-102, Integrated Methods of Parasite- (27-Jul-00)
item Exporting Novel Dod-Sponsored Technologies for Waterborne Pathogen Detection- (30-Apr-00)
item Cryptosporidium Systematics and Implicators for Public Health- (12-Mar-00)
item House Flies (Musca Domestica) As Transport Hosts of Cryptosporidium Parvum- (14-Oct-99)
item Epidemiology and Strain Variation of Cryptosporidium Parvum- (19-May-99)
item Phylogenetic Relationships Amongst Isolates of Cryptosporidium Evidence for Several New Species- (13-May-99)
item Prevalence of Giardia Duodenalis Genotype in Pre-Weaned Dairy Calves- (01-Jul-04)
item Cryptosporidiosis Associated with Emaciation and Proliferative Gastritis in a Laboratory South African Clawed Frog- (22-Oct-02)
item Infectivity of Microsporidia Spores Stored in Water at Environmental Temperature- (14-Aug-02)
item A Real-Time Rt-Pcr Reaction Specific for Bovine Enteroviruses Provides a Rapid Assay for Fecal Contamination of the Environment by Cattle- (10-Jun-02)
item Prevalence of Giardia in Dairy Calves and Cross-Species Transmission Potential- (14-May-02)
item Tracking Fecal Pathogens from Cattle and Wildlife in the Chesapeake Bay- (28-Mar-02)
item Effect of Temperature Extremes and Chemical Disinfectants on Infectivity Ofmicrosporidian Spores- (01-Feb-02)
item Effect of Progressive Cachectic Parasitism and Growth Hormone Treatment on Hepatic 5'-Deiodinase Activity in Calves- (09-Jan-02)
item Rapid Extracton of DNA from Escherichia Coli and Cryptosporidium Parvum for Use in Pcr- (23-Aug-01)
item Immunohistochemistry Based Assay to Determine the Effects of Treatments on Chryptosporidium Parvum Viability- (06-Jul-01)
item Rapid Nucleic Acid Extraction from Eastern Oysters, Crassostera Virginica- (18-Sep-00)
item Transforming Growth Factor B1 Ameliorates Intestinal Epithelial Barrier Disruption by Cryptosporidium Parvum in Vitro in the Absence of Mucosal T Lymphocytes- (01-Sep-00)
item Mrna Levels for Amyloglucosidase As Measured by Rt-Pcr Correlate with Infectivity and Fecundity of Cryptosporidium Parvum Oocysts for Neonatal Balb/c Mice- (07-Jul-00)
item Molecular Cloning and Expression of DNA Sequence Encoding a Cryptosporidium Parvum Oocyst Wall Protein- (21-Dec-99)
item Molecular Epidemiology of Cyclospora and Cryptosporidium Infections among Us Military Personnel in Indonesia- (01-Nov-99)
item Protection of Calves Against Cryptosporiosis by Oral Inoculation with Gamma-Irradiated Cryptosporidium Parvum Oocysts.- (14-May-04)
item Effects of Gamma Radiation on Survival of Encephalitozoon Cuniculi, Encephalitozoon Hellem, and Encephalitozoon Intestinalis Spores- (01-Feb-02)
item Prevalence and Age Related Variation of Cryptosporidium Species and Genotypes in Dairy Calves- (31-Mar-04)
item Recovery and Detection of Cryptosporidium Parvum Oocysts from Water Samples Using Continuous Flow Centrifugation, Pcr, and Fluorescence in Situ Hybridization- (01-May-03)
item Cryptosporidium Hominis N. Sp. (Apicomplexa: Cryptosporididae) from Humans, Homo Sapiens- (01-Nov-02)
item Cryptosporidium Hominis N. Sp. (Apicomplexa: Cryptosporidiidae) from Humans, Homo Sapiens- (14-Aug-02)
item Comparison of Assays for Viable Cryptosporidium Parvum Oocysts Stored in Water at Constant Temperature- (11-Jul-02)
item Estimating Viability of Cryptosporidium Parvum Oocysts Using Reverse Transcriptase-Polymerase Chain Reaction Directed at Mrna Encoding Amyloglucosidase- (18-Aug-00)
item Characterization of Cryptosporidium Meleagridis and First Report of C. Meleagridis in An Indian Ring-Necked Parrot (Psittacula Krameri).- (27-Oct-99)
item Evaluation of Pcr for Detection of Cryptosporidium Parvum in Environmental and Agricultural Samples- (11-Jul-99)
item A Redescription of Cryptosporidium Galli Pavlasek 1999 (Apicomplexa: Crypstoporidiidae) from Birds.- (01-Nov-02)
item Cloning and Expression of a DNA Sequence Encoding a 41 Kda Cryptosporidium Parvum Oocyst Wall Protein- (27-Sep-99)
item Host Adaption and Host-Parasite Co-Evolution in Cryptosporidium: Implications for Taxonomy and Public and Public Health- (01-Aug-02)
item Molecular and Phytogenetic Characterization of Cryptosporidium from Birds- (19-Apr-00)
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