169236 ⎘
Investigating or analysing materials by specific methods not covered by groups -; Biological material, e.g. blood, urine ; Haemocytometers; Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing; Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses Protozoa
Methods and Reagents for Toxoplasma Infection Diagnosis
#2MEANS FOR DETECTING SCHISTOSOMA INFECTION
#3SYSTEMS AND METHODS FOR AIRBORNE ENVIRONMENTAL DETECTION AND SURVEILLANCE OF PATHOGENS WITH ELECTROCHEMICAL ANALYSIS
#4COMPOSITIONS AND METHODS FOR DETECTING LYMPHATIC FILARIASIS
#5TEST FOR THE DETECTION OF ANTIBODIES AGAINST LEISHMANIA
#6NEUTRALIZING ANTIBODIES TO PLASMODIUM FALCIPARUM CIRCUMSPOROZOITE PROTEIN AND THEIR USE
#7METHODS OF DETECTION OF INTESTINAL PARASITES
#8ANTIGENIC REGIONS FOR THE DETECTION OF ANTI-TOXOPLASMA GONDII IGM ANTIBODIES
#9ANTIGENIC PEPTIDES AND METHODS OF USE FOR DIAGNOSIS OF CHAGAS DISEASE
#10TREATMENT AND DIAGNOSIS OF TOXOPLASMA-ASSOCIATED DISEASE
#11Methods and compositions for assessing antibody specificities
#12RAPID TICK TESTER
#13CAPTURE REAGENT FOR LATERAL FLOW IMMUNOASSAY
#14System, method, apparatus and diagnostic test for plasmodium vivax
#15DIAGNOSTIC METHOD FOR INFECTIOUS DISEASES
#16COMPOSITIONS AND METHODS FOR DETECTING TRYPANOSOMA CRUZI INFECTION
#17AUTOMATIC DEVICE FOR NON-INVASIVE MALARIA DIAGNOSIS THROUGH OPTICAL REFLECTANCE TECHNIQUES, METHODS AND USES THEREOF
#18VIRUS-LIKE PARTICLE COMPRISING TOXOPLASMA GONDII PROTEIN AND INFLUENZA VIRUS PROTEIN, AND DIAGNOSTIC METHOD USING SAME
#19FERROFLUID-BASED ASSAY METHODS, AND SYSTEMS FOR PARASITE EGGS OR OOCYSTS DETECTION
#20Methods and compositions for assessing antibody specificities
#21BIOSENSOR FOR ELECTROCHEMICAL DETECTION OF E.G. MALARIA BIOMARKERS
#22GARGLE SPECIMEN SAMPLING
#23METHODS AND COMPOSITIONS FOR ASSESSING ANTIBODY SPECIFICITIES
#24Enhanced chemiluminescent enzyme-linked immunosorbent assay for detection of antibodies against
#25BIOMARKER SENSOR-BASED DETECTION OF DISEASE-SPECIFIC BIOMARKERS
#26USE OF VIRUS-LIKE PARTICLES INCLUDING TOXOPLASMA GONDII APICAL MEMBRANE ANTIGEN 1 FOR SERODIAGNOSING TOXOPLASMOSIS
#27ASSAYS FOR DETERMINIG THE PATHOGENCITY OF TOXOPLASMA INFECTIONS
#28CHIMERIC RECOMBINANT PROTEIN ENCODING EPITOPES WITH IDENTITY TO BACTERIAL, FUNGAL, PARASITE AND HUMAN METABOLIC ENZYMES INVOLVED IN PATHOGENESIS DURING SEXUALLY TRANSMITTED INFECTIONS
#29PLASMODIUM VIVAX MALE GAMETE FUSION PROTEIN PVHAP2 AND THE PUTATIVE PROLIFERATING-CELL NUCLEOLAR ANTIGEN P120 AS RELAPSE BIOMARKERS
#30VELVET DISEASE DETECTION DEVICE, SYSTEM AND METHOD
#31COMPOSITIONS AND METHODS FOR THE PROPHYLAXIS AND TREATMENT OF BABESIOSIS
#32COMPOSITIONS AND METHODS FOR THE PROPHYLAXIS AND TREATMENT OF BABESIOSIS
#33NEW SEROLOGICAL MARKER FOR THE LATENT FORM OF TOXOPLASMOSIS
#34DIAGNOSIS OF BABESIA USING BABESIA RECOMBINANT PROTEINS
#35NOVEL SECRETED ANTIGENS FOR DIAGNOSIS OF ACTIVE BABESIA MICROTI AND BABESIA DUNCANI INFECTION IN HUMANS AND ANIMALs
#36Neutralizing antibodies to circumsporozoite protein and their use
#37Surface enhanced Raman spectroscopy point of care virus detection system
#38Anti-plasmodium falciparum HRP-II antibody
#39Plasmodium with histamine releasing factor (HRF) deficiency for use as a vaccine
#40DIAGNOSTIC METHODS FOR THE DETECTION AND QUANTIFICATION OF BLOOD-RELATED DISEASES
#41B-cell epitope of cysteine protease inhibitor, hybridoma cell line, monoclonal antibody and uses thereof
#42Enhanced chemiluminescent enzyme-linked immunosorbent assay for detection of antibodies against
#43Methods and compositions for assessing antibody specificities
#44System, method, apparatus and diagnostic test for
#45ASSAYS FOR DETERMINIG THE PATHOGENCITY OF TOXOPLASMA INFECTIONS
#46METHOD FOR MICROBIAL SPECIES DETECTION, QUANTIFICATION AND ANTIBIOTIC SUSCEPTIBILITY IDENTIFICATION
#47MHC Peptide Complexes and Uses Thereof in Infectious Diseases
#48Animal and human anti-malarial agents
#49and vaccine
#50METHODS AND APPARATUSES FOR IDENTIFYING RED BLOOD CELLS INFECTED BY PLASMODIUM
#51SYSTEM, METHOD, APPARATUS AND DIAGNOSTIC TEST FOR PREGNANCY
#52PLASMODIUM FALCIPARUM AND PLASMODIUM VIVAX VACCINE
#53System for microbial species detection, quantification and antibiotic susceptibility identification
#54METHODS FOR SCREENING INFECTIONS
#55METHOD FOR DETECTING PRESENCE OF A THIOETHER AND KIT FOR DETECTING SAME
#56Methods for diagnosing infectious diseases using adsorption media
#57Blood analyzer and blood analyzing method for determining if plasmodium infection is present
#58TREATMENT AND DETECTION OF TRYPANOSOMES
#59Methods and compositions for assessing antibody specificities
#60Animal and human anti-malarial agents
#61Glycoconjugates and methods for their use
#62Plasmodium with histamine releasing factor (HRF) deficiency for use as a vaccine
#63Modified Indirect Enzyme Linked Immunosorbent Assay Optimal for Monitoring Acute and Long Term Carrier Infections of Diverse Babesia bovis Strains
#64Compositions and methods for detection of malaria biomarkers
#65ANTI-T. CRUZI ANTIBODIES AND METHODS OF USE
#66Diagnostic methods for the detection and quantification of blood-related diseases
#67Method for the quantification of parasite eggs in feces
#68ASSAYS FOR DETERMINIG THE PATHOGENCITY OF TOXOPLASMA INFECTIONS
#69Babesia Biomarkers for Diagnostic and Screening In Vitro Diagnostic Test
#70SEROLOGY ASSAY FOR RECENT MALARIA INFECTION
#71Animal and human anti-trypanosomonal and anti-leishmania agents
#72Animal and human anti-malarial agents
#73Serum antibody assay for determining protection from malaria, and pre-erythrocytic subunit vaccines
#74TREATMENT AND DETECTION OF TRYPANOSOMES
#75PROTEINS COMPRISING A MUTATED LAIR-1 FRAGMENT AND USES THEREOF
#76Method for labeling specifically living microorganisms comprising the use of modified monosaccharide compounds
#77Lateral flow assays with thermal contrast readers
#78Method for the quantification of parasite eggs in feces
#79BIOMARKERS FOR MALARIA DIAGNOSIS
#80Blood based Plasmodium infection analyzer
#81Antibodies to the surface of oocysts and methods of use thereof
#82Modified Indirect Enzyme Linked Immunosorbent Assay Optimal for Monitoring Acute and Long Term Carrier Infections of Diverse Babesia bovis Strains
#83Animal and human anti-malarial agents
#84Animal and human anti-trypanosomonal and anti-leishmania agents
#85Malaria detection
#86Glycoconjugates and methods for their use
#87Artificial antigen produced using partial sequence of enolase protein originated from plasmodium falciparum, and method for producing same
#88Use of focused light scattering techniques in biological applications
#89Recombinant JL7 antigen variants and their use for detecting Chagas disease
#90Antigen composition for detecting Chagas disease
#91In vivo induced toxoplasma gondii protein for application in diagnosis, vaccine and therapy
#92MALARIA ANTIGEN SCREENING METHOD
#93INTEGRATION OF SAMPLE SEPARATION WITH RAPID DIAGNOSTIC TESTS FOR IMPROVED SENSITIVITY
#94DIFFERENTIAL DIAGNOSTIC METHOD AND KIT FOR INFECTIOUS AND PARASITIC DISEASES, USING FLOW CYTOMETRY
#95Systems and methods of epitope binning and antibody profiling
#96Multi-component-multistage malaria vaccines
#97Blood analyzing method as well as stain solution and blood analyzer used for the same
#98Anti-antibodies and methods of use
#99Use of focused light scattering techniques in biological applications
#100PAPER-BASED IMMUNOASSAY WITH POLYMERIZATION-BASED SIGNAL AMPLIFICATION
#101Detection/measurement of malaria infection disease utilizing natural immunity by hemozoin induction, screening of preventative or therapeutic medicine for malaria infection disease, and regulation of natural immunity induction
#102Methods for diagnosing pervasive development disorders, dysautonomia and other neurological conditions
#103VIRUS-LIKE PARTICLE FOR USE IN IMMUNOASSAY, BLOCKING AGENT FOR USE IN THE IMMUNOASSAY, AND KIT COMPRISING THE VIRUS-LIKE PARTICLE AND THE BLOCKING AGENT
#104Vaccines comprising polypeptides for the treatment and diagnosis of leishmaniasis
#105VACCINES COMPRISING LEISHMANIA POLYPEPTIDES FOR THE TREATMENT AND DIAGNOSIS OF LEISHMANIASIS
#106Combination therapies for malaria
#107Peptides and methods for the detection of Leishmaniasis
#108Nanoparticles leverage biological membranes to target pathogens for disease treatment and diagnosis
#109Methods for diagnosing infectious diseases using adsorption media
#110Blood analyzing method and blood analyzer
#111Recombinantly expressed plasmodium CelTOS antigen and methods of use thereof
#112Biomarkers for chagas disease related cardiomyopathy
#113Method for screening drugs and animal model for same
#114Blood analyzing device for malaria analysis
#115Hemoglobin receptor as novel vaccine for leishmaniasis
#116Method for the quantification of parasite eggs in feces
#117Recombinant GRA antigens and the use of same for early diagnosis of toxoplasmosis
#118Peptide and Antibody Test Material for Detecting Both Vivax Malaria and Falciparum Malaria
#119Methods and devices for integrating analyte extraction, concentration and detection
#120Method of screening anti-plasmodial activity of acriflavin and acriflavin as an anti-malarial agent
#121Anti-antibodies and methods of use
#122Protein microarray for characterizing the specificity of the monoclonal immunoglobulins of MGUS or myeloma patients
#123Lipocalin-2 as a Biomarker for Pneumococcal Infection Status and Uses Thereof
#124Synthesis of diverse glycosylphosphatidylinositol glycans from and their application as vaccines and diagnostics
#125COMPOSITIONS AND METHODS FOR ASSESSING GASTROINTESTINAL HEALTH
#126Methods for diagnosing pervasive development disorders, dysautonomia and other neurological conditions
#127Recombinant polypeptide construct comprising circumsporozoite protein HLA class I restricted T-cell epitopes
#128Portable rapid diagnostic test reader and methods of using the same
#129COMPOUNDS AND METHODS FOR DIAGNOSIS AND TREATMENT OF LEISHMANIASIS
#130METHOD OF INTRACELLULAR INFECTIOUS AGENT DETECTION IN SPERM CELLS
#131Differential diagnostic method and kit for infectious and parasitic diseases, using flow cytometry
#132Blood analyzer, blood analysis method, hemolytic agent and staining agent
#133Fusion proteins and their use in the diagnosis and treatment of leishmaniasis
#134Use of focused light scattering techniques in biological applications
#135Method for evaluating the sensitivity and specificity of fast malaria-diagnosis test kits
#136Multi-fluorescent substance including novel coumarin derivative, and LED light source-based microfluorescent quantitative biosensor for diagnosis using same
#137Methods of Producing Competitive Aptamer FRET Reagents and Assays
#138Expression vectors for cell-surface expression of polypeptides comprising a transmembrane domain of glycophorin A
#139Water Treatment and Monitoring
#140Wireless based marine pathogens detection system
#141Compositions and Methods for Assessing Gastrointestinal Health
#142Malaria vaccine
#143Methods and apparatuses for identifying red blood cells infected by plasmodium
#144Method of detecting and/or quantifying an analyte in a biological sample
#145Methods and uses for metabolic profiling for infection
#146DETECTION OF BIOLOGICAL MOLECULES BY DIFFERENTIAL PARTITIONING OF ENZYME SUBSTRATES AND PRODUCTS
#147Reagent patterning in capillarity-based analyzers and associated systems and methods
#148Compositions and methods for detecting microbial infections
#149BIOMARKERS FOR EARLY DETERMINATION OF A CRITICAL OR LIFE THREATENING RESPONSE TO ILLNESS AND/OR TREATMENT RESPONSE
#150Methods for diagnosing pervasive development disorders, dysautonomia and other neurological conditions
#151Screening methods for identifying proteases inhibitors
#152MALARIA VACCINES
#153Assay method for peptide specific T-cells
#154Treatment and prevention of malaria
#155Compositions and methods for treatment, research and therapeutic applications for malaria
#156Sensitive and specific assay for spp
#157Nucleic acid aptamers against plasmodium lactate dehydrogenase and histidine-rich protein II and uses thereof for malaria diagnosis
#158Antigenic structure and uses thereof for screening trypanosomiases in humans and animals
#159Portable rapid diagnostic test reader
#160Pathogen detection
#161Mutant parasites for use as vaccines and platforms for screening for compounds
#162Compositions and methods for diagnosis, prognosis and management of malaria
#163DNA aptamer specifically binding to pLDH (plasmodium lactate dehydrogenase)
#164Diagnostic Methods for Assessing Risk of Chagas Disease and Heart Failure
#165Mite allergen
#166Methods of diagnosing a plasmodium infection
#167Liquid drop diagnostic assays
#168Use of inhibitors of scavenger receptor class proteins for the treatment of infectious diseases
#169MHC peptide complexes and uses thereof in infectious diseases
#170Recombinantly expressed CelTOS antigen and methods of use thereof
#171genomic clones containing novel antigens useful in the diagnosis of babesiosis
#172Microfluidic devices and methods for malaria detection
#173Diagnosis of a parasitic disease such as leishmaniasis using ribosomal protein extract (RPE)
#174SERUM BIOMARKERS FOR CHAGAS DISEASE
#175Detection/measurement of malaria infection disease utilizing natural immunity by hemozoin induction, screening of preventative or therapeutic medicine for malaria infection disease, and regulation of natural immunity induction
#176Anti-antibodies and methods of use
#177SULFATED POLYSACCHARIDES HAVING ANTIPLASMODIAL ACTIVITY AND METHODS AND PRODUCTS FOR IDENTIFYING ANTIPLASMODIAL ACTIVITY
#178Wireless based marine pathogens detection system
#179Methods for diagnosing pervasive development disorders, dysautonomia and other neurological conditions
#180Nucleotide and amino acid sequences encoding an exported protein 1 derived from and uses thereof
#181Methods and compositions for treating and preventing malaria using an invasion ligand directed to a protease-resistant receptor
#182genomic clones containing novel antigens useful in the diagnosis of
#183Compounds and methods for diagnosis and treatment of leishmaniasis
#184Diagnosis and treatment of infection and Chagas disease
#185MSP2 ANTIGENIC PEPTIDES AND THEIR USE
#186METHOD FOR SCREENING COMPOUNDS FOR THEIR ABILITY TO INCREASE RIGIDITY OF RED BLOOD CELLS INFECTED BY A PROTOZOAN PARASITE OF THE GENUS PLASMODIUM, METHOD FOR FILTERING RED BLOOD CELLS, AND APPLICATION THEREOF
#187ANTI-PROTOZOA COMPOUNDS
#188Cell detection method, and microarray chip for use in the method
#189Method for the screening of conserved secreted proteins
#190Methods and materials for the detection of infection
#191Plasmodium falciparum HLA class I restricted T-cell epitopes
#192Compositions and methods for diagnosis, prognosis and management of malaria
#193Malaria detection by small angle light scattering
#194FLUORESCENT COMPOUNDS FOR THE DIAGNOSIS OF INFECTIONS, PRODUCTION METHOD, AND APPLICATIONS THEREOF
#195Blood analyzer, blood analysis method, hemolytic agent and staining agent
#196Methods for detecting virulent , for evaluating virulence, and for screening new drugs employing the 3′ UTR of SUB2 and the SUB2 serine protease
#197ANGIOPOIETIN-1 AND -2 BIOMARKERS FOR INFECTIOUS DISEASES THAT COMPROMISE ENDOTHELIAL INTEGRITY
#198Use of the α chain of brain spectrin and fragments thereof, for diagnosing cerebral diseases
#199ErbB Surface Receptor Complexes as Biomarkers
#200Detection of plasmodium falciparum histidine-rich protein II in saliva malaria patients
#201Genetic markers associated with endometriosis and use thereof
#202Attenuated uracil auxotroph of an apicomplexan and use thereof
#203USE OF A NEW ISOLATE OF NEOSPORA CANINUM FOR THE DEVELOPMENT OF DIAGNOSTIC TESTS AND FOR PREPARATION OF PRODUCTS FOR TREATMENT AND PREVENTION OF THE INFECTION CAUSED BY NEOSPORA
#204Nucleotide and amino acid sequences encoding an exported protein 1 derived from and uses thereof
#205Isolation and purification of merozoite protein-1vaccine
#206MHC peptide complexes and uses thereof in infectious diseases
#207Malaria antigen screening method
#208Assay method for peptide specific T-cells
#209Babesia Subtilisin
#210PLASMODIUM FALCIPARUM ANTIGENS INDUCING PROTECTIVE ANTIBODIES
#211Streptococcus Pneumoniae Antigens
#212H. Meleagridis Assay
#213Method for obtaining a cellular product from a cell or a tissue using protein-free medium
#214Method, reagent and kit for malaria testing
#215Expression, purification and uses of a plasmodium falciparum liver stage antigen 1 polypeptide
#216Digalactolipidic Antigen Exposed on the Surface of Apicomplex Parasites, and Diagnostic and Therapeutic Use Thereof
#217Use of focused light scattering techniques in biological applicationa
#218Recombinant merozoite protein-1vaccine
#219Methods and Kits for Detecting and Quantifying Damage Caused by a Parasite
#220Fusion proteins and their use in the diagnosis and treatment of leishmaniasis
#221COMPOUNDS AND METHODS FOR DIAGNOSIS AND TREATMENT OF CHAGAS DISEASE
#222Use of Inhibitors of Scavenger Receptor Class Proteins for the Treatment of Infectious Diseases
#223Methods and Materials for the Detection of Leishmania Infection
#224and genes and uses thereof
#225Detection of
#226oocyst protein
#227Toxoplasma gondii Oocyst Protein
#228Biomarkers for Babesia
#229Anti-T. Cruzi Antibodies and Methods of Use
#230IMMUNOASSAY FOR PLASMODIUM FALCIPARUM AND ASSAY DEVICE USED THEREFOR
#231Malaria Vaccines
#232METHODS AND COMPOSITIONS FOR TREATING AND PREVENTING MALARIA
#233Hydrogel thin film for use as a biosensor
#234Clinical correlates
#235Polypeptides of and polynucleotides encoding same and vaccinal, therapeutical and diagnostic applications thereof
#236Vaccine composition and uses thereof
#237Compositions and methods for treatment, research and therapeutic applications for malaria
#238diagnostic assay device
#239Detection of biological molecules by differential partitioning of enzyme substrates and products
#240Compositions for detecting antibodies to and methods of uses thereof
#241Antigenic peptides and their use
#243Detection/Measurement Of Malaria Infection Disease Utilizing Natural Immunity By Hemozoin Induction, Screening Of Preventative Or Therapeutic Medicine For Malaria Infection Disease, And Regulation Of Natural Immunity Induction
#244Method and device for detection
#245Mite allergen
#246METHODS AND COMPOSITIONS TO DIAGNOSE TRICHOMONAS INFECTION
#247DNA sequences encoding peptide sequences specific for the hepatic stages of P. falciparum bearing epitopes capable of stimulating the T lymphocytes
#248Method for measuring protozoan oocyst and detecting reagent
#249Genetically engineered P30 antigen, improved antigen cocktail, and uses thereof
#250Attenuated uracil auxotroph of an apicomplexan and use thereof
#251COMPOSITIONS AND METHODS FOR THE DETECTION OF TRYPANOSOMA CRUZI INFECTION
#252Methods for the detection and diagnosis of infection
#253Method and device for detection
#254Recombinant merozoite protein-1vaccine
#255Polypeptides for the diagnosis and therapy of Leishamaniasis
#256Diagnostic assay for infection
#257Use of the gene NcSAG4 for the diagnosis and prevention of neosporosis and as a marker for analysis of the pathogenesis
#258Method of producing partial peptide of enolase protein from
#259Compounds and methods for diagnosis and treatment of leishmaniasis
#260proteome compositions and methods
#261Methods, compositions, and kits for detecting cyrptosporidium pathogens
#262Novel therapeutic target for protozoal diseases
#263Plasmodium vivax blood stage antigens, PVESP-1, antibodies and diagnostic assays
#264Methods and compositions for detecting in a sample contacted with fixative
#265Substrates, sensors, and methods for assessing conditions in females
#266Methods and compositions for detecting larval with a cloned diagnostic antigen
#267Methods for the determination of antibody IgG avidity
#268Therapeutic target for protozoal diseases
#269Methods and compositions to correlate infection with prostate cancer
#270Babesia vaccines
#271Helminth-derived antigens having capacity of providing protection against parasites
#272Methods and compositions to diagnose Trichomonas infection
#273Methods for detecting virulent , for evaluating virulence, and for screening new drugs employing the 3′UTR of SUB2 and the SUB2 serine protease
#274Methods and compositions to diagnose infection
#275Screening method for substance binding to merozoite surface protein-1/42
#276Cloning, sequencing and expression of a gene encoding an eukaryotic amino acid racemase, and diagnostic, therapeutic, and vaccination applications of parasite and viral mitogens
#277Cloning, sequencing and expression of a gene encoding an eukaryotic amino acid racemase, and diagnostic, therapeutic, and vaccination applications of parasite and viral mitogens
#278Practical serological assay for the clinical diagnosis of
#279Flavin protein of trypanosoma cruzi, method of screening vermicide with the use of the same and diagnostic
#280Methods and compositions for treating
#281Cloning, sequencing and expression of a gene encoding an eukaryotic amino acid racemase, and diagnostic, therapeutic, and vaccination applications of parasite and viral mitogens
#282Method of screening
#283Process for producing antigenic substance
#284Reagent for partially lysing a cell membrane of a red blood cell, a reagent for detecting malaria infected red blood cells, and a sample analyzing method for detecting malaria infected red blood cells
#285antigens inducing protective antibodies
#286Leishmania antigens suitable for a diagnostic kit of Leishmania
#287Novel field testing method and device for detection of equine protozoal myeloencephalitis
#288Methods and kit for diagnosing tick borne illnesses
#289Assay to screen for anti-malarials
#290Peptide sequences specific for the hepatic stages of bearing epitopes capable of stimulating the T lymphocytes
#291Isolation and purification of merozoite protein-142 vaccine
#292Polynucleotide encoding a genetically engineered P30 antigen
#293Detection of trichomonas
#294Expression, purification and uses of a liver stage antigen 1 polypeptide
#295Definitive diagnosis of EPM in the horse
#296Methods for detection of pathogens in red blood cells
#297Method and apparatus for detecting analyte with filter
#298Therapeutic compositions for use in prophylaxis or treatment of diarrheas
#299Chimeric gene formed of the DNA sequences that encode the antigenic determinants of four proteins of L. infantum, useful for serologic diagnosis of canine leishmaniosis and protein obtained
#300Positive selection in the immuno-dominant surface antigen 1 (SAG1) of sarcocystis neurona, agent of EPM: potential as a diagnostic reagent and as a component of a sub-unit vaccine