Veterinärmedizinische Universität Wien Forschungsinformationssystem VetDoc

Grafischer Link zur Startseite der Vetmeduni Vienna

Liebhart Dieter,

** = Publikationen gelistet in SCI/SSCI/Pubmed

2017

Zeitschriftenaufsatz

** Grafl, B; Garcia-Rueda, C; Cargill, P; Wood, A; Schock, A; Liebhart, D; Schachner, A; Hess, M (2017): Fowl aviadenovirus serotype 1 confirmed as the aetiological agent of gizzard erosions in replacement pullets and layer flocks in Great Britain by laboratory and in vivo studies. Avian Pathol. 2017; 1-10
[Article in Press]

** Liebhart, D; Ganas, P; Sulejmanovic, T; Hess, M (2017): Histomonosis in poultry: previous and current strategies for prevention and therapy. Avian Pathol. 2017; 46(1):1-18

** Martínez-Herrero, MC; Garijo-Toledo, MM; Liebhart, D; Ganas, P; Martínez-Díaz, RA; Ponce-Gordo, F; Carrero-Ruiz, A; Hess, M; Gómez-Muñoz, MT (2017): Novel avian oropharyngeal trichomonads isolated from European turtle doves (Streptopelia turtur) and racing pigeons (Columba livia): genetic and morphometric characterisation of clonal cultures. Infect Genet Evol. 2017; 55:93-103

** Mitra, T; Gerner, W; Kidane, FA; Wernsdorf, P; Hess, M; Saalmüller, A; Liebhart, D (2017): Vaccination against histomonosis limits pronounced changes of B cells and T-cell subsets in turkeys and chickens. Vaccine. 2017; 35(33):4184-4196
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** Paudel, S; Ruhnau, D; Wernsdorf, P; Liebhart, D; Hess, M; Hess, C (2017): Presence of Avibacterium paragallinarum and Histopathologic Lesions Corresponds with Clinical Signs in a Co-infection Model with Gallibacterium anatis. Avian Dis. 2017; 61(3):335-340

** Sulejmanovic, T; Liebhart, D; Mägdefrau-Pollan, B; Sanglhuber, EM; Wiesinger, E; Bilic, I; Hess, M (2017): Emergence of fatal histomonosis in meat Turkey flocks in Austria from 2014 to 2016. Wiener Tierarztliche Monatsschrift (104), 9-10 277-287.

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Gaußmann, B; Grafl, B; Liebhart, D; Hess, C; Hess, M; Paudel, S (2017): Genotypes of Escherichia coli strains isolated from bone marrow of broilers do not correlate with femoral head lesions. -20th World Veterinary Poultry Association Congress; SEP 4-8, 2017; Edinburgh, United Kingdom.

Grafl, B; Cargill, P; Garcia-Rueda, Cristina; Wood, A; Schock, A; Liebhart, D; Schachner, A; Hess, M (2017): In vivo studies confirm FAdV-1 as the etiological agent of adenoviral gizzard erosions seen in replacement pullets and layer flocks in the UK. -XXth World Veterinary Poultry Association Congress; Sept 4-8, 2017; Edinburgh, United Kingdom.

Liebhart, D; Sulejmanovic, T; Mägdefrau-Pollan, B; Sanglhuber, EM; Wiesinger, E; Bilic, I; Hess, M (2017): Monitoring von Histomonosefällen in österreichischen Putenbetrieben. -93. Fachgespräch über Geflügelkrankheiten; OCT 26-27, 2017; Hannover, Germany.

Matos, M; Dublecz, K; Liebhart, D; Hess, M (2017): Fowl aviadenovirus-induced pancreatitis leads to dysmetabolic conditions in broilers. -WVPA XXth Congress 2017; September 4-8, 2017; Edinburgh, United Kingdom.

Mitra, T; Gerner, W; Saalmüller, A; Kidane, FA; Wernsdorf, P; Hess, M; Liebhart, D (2017): Different kinetics of B cells and T cell subsets (CD3+CD4+CD8-, CD3+CD4-CD8+) are characteristic following vaccination of turkeys and chickens against histomonosis. -20th World Veterinary Poultry Association Congress; SEP 4-8, 2017; Edinburgh, United Kingdom.

Paudel, S; Ruhnau, D; Liebhart, D; Hess, M; Hess, C (2017): Increased severity of infectious coryza following co-infection of chickens with Avibacterium paragallinarum and Gallibacterium anatis can be minimized by vaccination. -20th World Veterinary Poultry Association Congress; SEP 4-8, 2017; Edinburgh, United Kingdom.

Paudel, S; Wernsdorf, P; Hess, C; Hess, M; Liebhart, D (2017): Establishing in situ hybridization to identify and localize Avibacterium paragallinarum in tissues. -20th World Veterinary Poultry Association Congress; SEP 4-8, 2017; Edinburgh, United Kingdom.

Sulejmanovic, T; Liebhart, D; Bilic, I; Hess, M (2017): Monitoring of field cases of histomonosis in turkey flocks based on cloacal swabs and environmental dust with genotyping of circulating histomonads. -9th 'Hafez' International Symposium on Turkey Production; MAI 18-20, 2017; Berlin, Germany.

Sulejmanovic, T; Liebhart, D; Mägdefrau-Pollan, B; Wiesinger, E; Hess, M (2017): PCR-monitoring of histomonosis outbreaks in commercial meat turkey flocks treated with paromomycin. -XXth World Veterinary Poultry Association Congress; SEP 4-8, 2017; Edinburgh, United Kingdom.

2016

Zeitschriftenaufsatz

** Kidane FA; Bilic I; Mitra T; Wernsdorf P; Hess M; Liebhart D (2016): In situ hybridization to detect and localize signature cytokines of T-helper (Th) 1 and Th2 immune responses in chicken tissues. Veterinary Immunology and Immunopathology (175) 51-56.

** Matos, M; Grafl, B; Liebhart, D; Hess, M (2016): The outcome of experimentally induced inclusion body hepatitis (IBH) by fowl aviadenoviruses (FAdVs) is crucially influenced by the genetic background of the host. Vet Res. 2016; 47(1):69
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** Matos, M; Grafl, B; Liebhart, D; Schwendenwein, I; Hess, M (2016): Selected clinical chemistry analytes correlate with the pathogenesis of inclusion body hepatitis experimentally induced by fowl aviadenoviruses. Avian Pathol. 2016; 45(5):520-529

** Mitra, T; Bilic, I; Hess, M; Liebhart, D (2016): The 60S ribosomal protein L13 is the most preferable reference gene to investigate gene expression in selected organs from turkeys and chickens, in context of different infection models. Vet Res. 2016; 47(1):105
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** Sulejmanovic, T; Bilic, I; Hess, M; Liebhart, D (2016): An in vitro attenuated strain of Histomonas meleagridis provides cross-protective immunity in turkeys against heterologous virulent isolates. Avian Pathol. 2016; 45(1):46-53

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Kidane, F; Wernsdorf, P; Mitra, T; Hess, M; Liebhart, D (2016): Expression patterns of interferon gamma and interleukin 13 differ with the virulence of Histomonas meleagridis used to infect turkeys and chickens. -XIVth Avian Immunology Research Group (AIRG) Meeting 2016; SEP 7-10, 2016; Herrsching, GERMANY.

Kidane, FA; Wernsdorf, P; Hess, M; Liebhart, D (2016): Virulent and attenuated clonal cultures of Histomonas meleagridis induce a different expression pattern of interferon gamma and interleukin 13 in the hosts determined by in situ hybridization. -3rd International Symposium on Parasite Infections of Poultry; JUL 1-2, 2016; Vienna, AUSTRIA.

Liebhart, D (2016): Strategies to control histomonosis in poultry. -LV CONVEGNO ANNUALE SIPA; MAY 5-6, 2016; Padua, Italy.

Matos, M; Grafl, B; Liebhart, D; Hess, M (2016): Fowl aviadenovirus-induced lesions in liver and pancreas coincide with severe metabolic disorders in broiler chickens. -Microbiology Society Focused Meeting 2016: Molecular Biology and Pathogenesis of Avian Viruses; SEPT 27-29, 2016; London, UK.

Mitra, T; Bilica, I; Hess, M; Liebhart, D (2016): RPL13 is the most preferable reference gene for gene quantification studies considering selected tissues in turkeys and chickens for different infection models. -XIVth Avian Immunology Research Group (AIRG) Meeting 2016; SEP 7-10, 2016; Herrsching, GERMANY.

Mitra, T; Gerner, W; Saalmüller, A; Kidane, F; Wernsdorf, P; Hess, M; Liebhart, D (2016): Virulent Histomonas meleagridis causes pronounced changes in T cell subsets and B cells of turkeys and chickens compared to attenuated parasites. -XIVth Avian Immunology Research Group (AIRG) Meeting 2016; SEP 7-10, 2016; Herrsching, GERMANY.

Mitra, T; Gerner, W; Saalmüller, A; Kidane, FA; Wernsdorf, P; Hess, M; Liebhart, D (2016): Divergent cellular immune response of turkeys and chickens against Histomonas meleagridis. -3rd International Symposium on Parasite Infections in Poultry; JUL 1-2, 2016; Vienna , AUSTRIA.

Sulejmanovic, T; Mägdefrau-Pollan, B; Sanglhuber, EM; Wiesinger, E; Liebhart, D; Hess, M (2016): Use of paromomycin in field outbreaks of histomonosis in commercial turkey flocks in Austria. -3rd International Symposium on Parasite Infections in Poultry; JUL 1-2, 2016; Vienna, AUSTRIA.

Sulejmanovic, T; Mägdefrau-Pollan, B; Sanglhuber, EM; Wiesinger, E; Liebhart, D; Hess, M (2016): Attempts to treat turkeys suffering from histomonosis using paromomycin in Austrian field outbreaks – case reports. -11th “Hafez” International Symposium on Turkey Diseases; MAY 26-28, 2016; Berlin, GERMANY.

2015

Zeitschriftenaufsatz

** Awad, WA; Molnár, A; Aschenbach, JR; Ghareeb, K; Khayal, B; Hess, C; Liebhart, D; Dublecz, K; Hess, M (2015): Campylobacter infection in chickens modulates the intestinal epithelial barrier function. Innate Immun. 2015; 21(2):151-160

** Grafl, B; Weise, H; Le Bris, J; Liebhart, D; Bilic, I; Hess, M (2015): Aberrant Clinical Appearance and Pathomorphology Noticed During an Outbreak of Histomonosis Indicates a Different Pathogenesis of Histomonas meleagridis Genotype 2. Avian Dis. 2015; 59(3):452-458

** Hess, M; Liebhart, D; Bilic, I; Ganas, P (2015): Histomonas meleagridis--new insights into an old pathogen. Vet Parasitol. 2015; 208(1-2):67-76

** Paudel, S; Hess, C; Wernsdorf, P; Käser, T; Meitz, S; Jensen-Jarolim, E; Hess, M; Liebhart, D (2015): The systemic multiplication of Gallibacterium anatis in experimentally infected chickens is promoted by immunosuppressive drugs which have a less specific effect on the depletion of leukocytes. Vet Immunol Immunopathol. 2015; 166(1-2):22-32

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Grafl, B; Weise, H; Le Bris, J; Liebhart, D; Bilic, I; Hess, M (2015): Outbreak of histomonosis with aberrant pathomorphology characterized by severe caecal lesions with minimal liver involvement. -8th International Symposium on Turkey production; MAI 28-30, 2015; Berlin, Germany.

Grafl, B; Weise, H; Le-Bris, J; Liebhart, D; Bilic, I; Hess, M (2015): Abberant pathomorphology in turkeys suffering from histomonosis characterized by severe caecal lesions and minimal liver involvement. -WVPAC 2015; SEP 7-11, 2015; Capetown, South Africa.

Kidane, FA; Bilic, I; Wernsdorf, P; Hess, M; Liebhart, D (2015): In situ hybridization to detect and localize signature cytokines of the Th1 and Th2 immune responses in chicken tissues. -5th European Veterinary Immunology Workshop; SEP 2-4, 2015; Vienna, AUSTRIA.

Liebhart, D (2015): Bedeutende Parasiten beim Geflügel. -Tagung des VET Arbeitskreises Geflügelforschung "Parasiten beim Nutzgeflügel"; MÄR 20-21, 2015; Rust.

Liebhart, D (2015): Strategies to prevent histomonosis in poultry. -XIXth Congress of the World Veterinary Poultry Association; SEP 7-11, 2015; Cape Town, SOUTH AFRICA.

Liebhart, D; Sulejmanovic, T; Mägdefrau-Pollan, B; Bilic, I; Hess, C; Hess, M (2015): Fallbeispiele für Histomonose in Österreich. -Tagung des VET Arbeitskreises Geflügelforschung "Parasiten beim Nutzgeflügel"; MÄR 20-21. 2015; Rust, AUSTRIA.

Liebhart, D; Wernsdorf, P; Kidane, F; Meitz, S; Jensen-Jarolim, E; Hess, M (2015): Changes of the cellular immune reaction of chickens infected with virulent or attenuated Histomonas meleagridis determined by quantitative imaging analyses. -XIXth Congress of the World Veterinary Poultry Association; SEP 7-11, 1015; Cape Town, SOUTH AFRICA.

Liebhart, D; Wernsdorf, P; Kidane, F; Meitz, S; Jensen-Jarolim, E; Hess, M (2015): Changes of the cellular immune reaction of chickens infected with virulent or attenuated Histomonas meleagridis determined by quantitative imaging analyses. -5th European Veterinary Immunology Workshop; SEP 2-4, 2015; Vienna, AUSTRIA.

Mitra, T; Gerner, W; Saalmüller, A; Göbel, T; Kidane, FA; Wernsdorf, P; Hess M; Liebhart, D (2015): Changes in T- and B-cell frequencies in different organs and blood of turkeys infected with virulent or attenuated Histomonas meleagridis. -5th European Veterinary Immunology Workshop; SEP 7-11, 2015; Vienna, AUSTRIA.

Paudel, S; Hess, C; Wernsdorf, P; Käser, T; Meitz, S; Jensen-Jarolim, E; Hess, M; Liebhart, D (2015): Multiplication of Gallibacterium anatis in chickens is promoted by experimentally induced immunosuppression. -19th World Veterinary Poultry Association Congress; SEP 7-11, 2015; Cape Town, SOUTH AFRICA.

Paudel, S; Liebhart, D; Aurich, C; Hess, M; Hess, C (2015): Gallibacterium anatis is a primary pathogen of reproductive problems in chickens: Koch's postulates fulfilled. -19th World Veterinary Poultry Association Congress; SEP 7-11, 2015; Cape Town, SOUTH AFRICA.

Populärwissenschaftlicher Artikel

Liebhart, D; Hess, M (2015): Schwarzkopfkrankheit beim Nutzgeflügel - Neue Strategien müssen her! DGS 40, 10-13.

2014

Zeitschriftenaufsatz

** Amin, A; Bilic, I; Liebhart, D; Hess, M (2014): Trichomonads in birds--a review. Parasitology. 2014; 141(6):733-747

** Bilic, I; Jaskulska, B; Souillard, R; Liebhart, D; Hess, M (2014): Multi-locus typing of Histomonas meleagridis isolates demonstrates the existence of two different genotypes. PLoS One. 2014; 9(3):e92438
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** Liebhart, D; Neale, S; Garcia-Rueda, C; Wood, AM; Bilic, I; Wernsdorf, P; Jaskulska, B; Hess, M (2014): A single strain of Tetratrichomonas gallinarum causes fatal typhlohepatitis in red-legged partridges (Alectoris rufa) to be distinguished from histomonosis. Avian Pathol. 2014; 43(5):473-480

** Paudel, S; Liebhart, D; Aurich, C; Hess, M; Hess, C (2014): Pathogenesis of Gallibacterium anatis in a natural infection model fulfils Koch"s postulates: 2. Epididymitis and decreased semen quality are the predominant effects in specific pathogen free cockerels. Avian Pathol. 2014; 43(6):529-534

** Paudel, S; Liebhart, D; Hess, M; Hess, C (2014): Pathogenesis of Gallibacterium anatis in a natural infection model fulfils Koch"s postulates: 1. Folliculitis and drop in egg production are the predominant effects in specific pathogen free layers. Avian Pathol. 2014; 43(5):443-449

** Troxler, S; Pać, K; Prokofieva, I; Liebhart, D; Chodakowska, B; Furmanek, D; Hess, M (2014): Subclinical circulation of avian hepatitis E virus within a multiple-age rearing and broiler breeder farm indicates persistence and vertical transmission of the virus. Avian Pathol. 2014; 43(4):310-318

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Kidane, FA; Hess, M; Liebhart, D (2014): In situ hybridization approach to study cytokines of the Th2 pathway. -XIII Avian Immunology Research Group Meeting; JUL 16-19, 2014; Guelph, CANADA.

Liebhart, D; Paudel, S; Wernsdorf, P; Käser, T; Meitz, S; Hess, C; Saalmüller, A; Jensen-Jarolim, E; Hess, M (2014): Failure of 5-fluorouracil and cyclosporin to induce depletion of a particular population of leucocytes determined by flow cytometry and quantitative imaging analyses. -XIII Avian Immunology Research Group Meeting; JUL 16-19, 2014; Guelph, CANADA.

Liebhart, D; Sulejmanovic, T; Bilic, I; Hess, M (2014): Cross-protection of experimentally vaccinated turkeys against different virulent isolates of Histomonas meleagridis. -10th International Symposium on Turkey Diseases; JUN 5-7, 2014; Berlin, GERMANY.

Paudel, S; Käser, T; Hess, C; Saalmüller, A; Hess, M; Liebhart, D (2014): Stress induced by corticosterone treatment favours the systemic infection with Gallibacterium anatis in chickens, determined by comparative application of immunosuppressive drugs. -International Pasteurellaceae Conference; MAY 13-16, 2014; Prato, ITALY.

Paudel, S; Kluger, S; Liebhart, D; Aurich, C; Hess, M; Hess, C (2014): Experimental infection with Gallibacterium anatis in SPF chickens causes pathological lesions in reproductive organs with clinical consequences on egg production and semen quality. -International Pasteurellaceae conference; MAY 13-16, 2014; Prato, ITALY.

Paudel, S; Kluger, S; Liebhart, D; Aurich, C; Hess, M; Hess, C (2014): Experimental infections confirm the influence of Gallibacterium anatis on reproduction in chickens. -CEPO Conference ; June 13, 2014; Vienna, AUSTRIA.

2013

Zeitschriftenaufsatz

** Grafl, B; Liebhart, D; Günes, A; Wernsdorf, P; Aigner, F; Bachmeier, J; Hess, M (2013): Quantity of virulent fowl adenovirus serotype 1 correlates with clinical signs, macroscopical and pathohistological lesions in gizzards following experimental induction of gizzard erosion in broilers. Vet Res. 2013; 44(1):38
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** Hess, C; Enichlmayr, H; Jandreski-Cvetkovic, D; Liebhart, D; Bilic, I; Hess, M (2013): Riemerella anatipestifer outbreaks in commercial goose flocks and identification of isolates by MALDI-TOF mass spectrometry. Avian Pathol. 2013; 42(2):151-156

** Liebhart, D; Sulejmanovic, T; Grafl, B; Tichy, A; Hess, M (2013): Vaccination against histomonosis prevents a drop in egg production in layers following challenge. Avian Pathol. 2013; 42(1):79-84

** Paudel, S; Alispahic, M; Liebhart, D; Hess, M; Hess, C (2013): Assessing pathogenicity of Gallibacterium anatis in a natural infection model: the respiratory and reproductive tracts of chickens are targets for bacterial colonization. Avian Pathol. 2013; 42(6):527-535

** Sulejmanovic, T; Liebhart, D; Hess, M (2013): In vitro attenuated Histomonas meleagridis does not revert to virulence, following serial in vivo passages in turkeys or chickens. Vaccine. 2013; 31(46):5443-5450

** Troxler, S; Rigomier, P; Bilic, I; Liebhart, D; Prokofieva, I; Robineau, B; Hess, M (2013): Identification of a new reovirus causing substantial losses in broiler production in France, despite routine vaccination of breeders. Vet Rec. 2013; 172(21):556

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Bilic,I; Jaskulska, B; Liebhart, D; Souillard, R; Hess, M (2013): Genetic analysis of Histomonas meleagridis isolates from different geographic locations demonstrates the existence of two genotypes. -World Veterinary Poultry Association French branch (GF-AMVA); AUG 19-23, 2013; Nantes, France.

Ganas, P; Bilic, I; Jaskulska, B; Liebhardt, D; Wallner, A; Schöpf, K; Hess, M (2013): Isolation and identification of Trichomonas gallinae from outbreaks of finch trichomonosis in Austria. -47th Annual Meeting of the Austrian Society of Tropical Medicine, Parasitology and Migration Medicine; NOV 21-23, 2013; Vienna, AUSTRIA.

Grafl, B; Liebhart, D; Günes, A; Wernsdorf, P; Aigner, F; Bachmeier, J; Hess, M (2013): Experimental adenoviral gizzard erosion: macroscopical and pathohistological gizzard lesions correlate with viral load. -XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, France.

Grafl, B; Liebhart, D; Prokofieva, I; Wernsdorf, P; Hess, M (2013): Infection with an apathogenic FAdV-1 prevents adenoviral gizzard erosion. -XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, France.

Hess, C; Enichlmayr, H; Jandreski-Cvetkovic, D; Liebhart, D; Bilic, I; Hess, M (2013): Riemerella anatipestifer outbreaks in commercial geese flocks characterized by high mortality. -XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, FRANCE.

Liebhart, D; Bilic, I; Jaskulska, B; Hess, M (2013): Examination of dust samples for the presence of Histomonas meleagridis. 655-655.-XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, FRANCE.

Liebhart, D; Bilic, I; Windisch, M; Hess, M (2013): In vivo assessment of the pathogenicity and immunizing potential of mono-eukaryotic cultures of Histomonas meleagridis isolated from different outbreaks of histomonosis in Europe. 656-656.-XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, FRANCE.

Liebhart, D; Sulejmanovic, T; Ganas, P; Hess, C; Ibesich, C; Hess, M (2013): Co-cultivated bacteria influence the colonization of attenuated Histomonas meleagridis following experimental vaccination of Turkeys. 633-633.-XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, France.

Mills, D; Senties-Cue, G; Charlton, B; Woods, L; Wernsdorf, P; Liebhart, D (2013): Diagnostic Differentiation of a Trichomoniasis and Histomoniasis Coinfection in a Turkey. -AVMA Convention; JUL 19-23, 2013; Chicago, USA.

Paudel, S; Alispahic, M; Liebhart, D; Hess, M; Hess, C (2013): Intranasal route is preferential over intravenous for the infection studies with Gallibacterium anatis in chickens. -XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, FRANCE.

Thøfner, ICN; Larsen, JO; Nielsen, OL; Liebhart, D; Hess, M; Schou, TW; Hess, C; Ivarsen, E; Fretté, XC; Christensen, LP; Grevsen, K; Engberg, RM; Christensen, JP (2013): Toxicity of artemisinin in one week old turkey poults. -7th International Symposium on Turkey Production; MAY 30 - JUN 1, 2013; Berlin, GERMANY.

Thøfner, ICN; Larsen, JO; Nielsen, OL; Liebhart, D; Hess, M; Schou, TW; Hess, C; Ivarsen, E; Fretté, XC; Christensen, LP; Mogensen, J; Nielsen, KF; Grevsen, K; Engberg, RM; Christensen, JP (2013): Hepatic toxicity of artemisinin in turkeys. 723-723.-XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, FRANCE.

Troxler, S; Rigomier, P; Bilic, I; Liebhart, D; Prokofieva, I; Robineau, B; Hess, M (2013): Field investigations and laboratory data support the existence of a new reovirus causing severe losses in French broiler flocks, despite routine vaccination of breeders. -XVIIIth Congress of the World Veterinary Poultry Association; AUG 19-23, 2013; Nantes, FRANCE.

2012

Zeitschriftenaufsatz

** Ganas, P; Liebhart, D; Glösmann, M; Hess, C; Hess, M (2012): Escherichia coli strongly supports the growth of Histomonas meleagridis, in a monoxenic culture, without influence on its pathogenicity. Int J Parasitol. 2012; 42(10):893-901

** Grafl, B; Aigner, F; Liebhart, D; Marek, A; Prokofieva, I; Bachmeier, J; Hess, M (2012): Vertical transmission and clinical signs in broiler breeders and broilers experiencing adenoviral gizzard erosion. Avian Pathol. 2012; 41(6):599-604

** Thøfner, IC; Liebhart, D; Hess, M; Schou, TW; Hess, C; Ivarsen, E; Fretté, XC; Christensen, LP; Grevsen, K; Engberg, RM; Christensen, JP (2012): Antihistomonal effects of artemisinin and Artemisia annua extracts in vitro could not be confirmed by in vivo experiments in turkeys and chickens. Avian Pathol. 2012; 41(5):487-496

Kongressbeitrag in einer Zeitschrift

** Ivarsen, E; Frette, XC; Engberg, RM; Thofner, ICN; Christensen, JP; Grevsen, K; Schou, TW; Liebhart, D; Hess, M; Christensen, LP (2012): Antibacterial and antiprotozoal effect of Artemisia annua extracts. International Congress on Natural Products Research on Global Change, Natural Products and Human Health/8th Joint Meeting of AFERP, ASP, GA, PSE and SIF, New York, NY, JUL 28 - AUG 1, 2012. Planta Med (78), 11 1205-1206.

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Amin, A; Bilic, I; Liebhart, D; Hess, M (2012): Cysteine peptidases of Trichomonas gallinae: Identification and characterization in vitro and in vivo. 50--2nd International Symposium on Protozoal Infections in Poultry; Jul 6-7, 2012; Vienna, Austria.

Ganas, P; Liebhart, D; Glösmann, M; Hess, C; Hess, M (2012): Growth of Histomonas meleagridis in monoxenic cultures reveals new insights into the interaction between protozoa and bacteria. 30--2nd International Symposium on Protozoal Infections in Poultry; Jul 6-7, 2012; Vienna, Austria.

Grafl, B; Liebhart, D; Günes, A; Prokofieva, I; Wernsdorf, P; Aigner, F; Bachmeier, J; Hess, M (2012): Untersuchungen zu Adenovirus-bedingten Muskelmagenläsionen bei Broilern. 40-42.-82. Fachgespräch über Geflügelkrankheiten; MAY 3-4, 2012; Hannover. (ISBN: 978-3-86345-069-4 )

Hess, C; Enichlmayr, H; Jandreski-Cvetkovic, D; Liebhart, D; Hess, M (2012): Riemerella anatipestifer outbreaks on commercial geese farms and identification of isolates by MALDI-TOF MS. 35--CEPO-Konferenz; Oct 11, 2012; Vienna, Austria.

Liebhart, D; Käser, T; Hu, TJ; Saalmüller, A; Kaiser, P; Hess, M (2012): Accumulation of CD8a+ γδ T cells in livers of spf chickens infected with Histomonas meleagridis. -XII Avian Immunology Research Group Meeting; AUG 28-31, 2012; Edinburgh, UK.

Liebhart, D; Sulejmanovic, T; Grafl, B; Tichy, A; Hess, M (2012): Vaccination of layers against histomonosis is capable to reduce a severe drop in egg production following experimental challenge. 33--2nd International Symposium on Protozoal Infection in Poultry; Jul 6-7, 2012; Vienna, Austria.

Sulejmanovic, T; Liebhart, D; Hess, M (2012): Assessing reversion to virulence and residual pathogenicity of attenuated Histomonas meleagridis in turkeys and chickens. 49--2nd International Symposium on Protozoal Infections in Poultry; Jul 6-7, 2012; Vienna, Austria.

Thofner, ICN; Liebhart, D; Hess, M; Schou, TW; Hess, C; Ivarsen, E; Frette, XC; Christensen, LP; Grevsen, K; Engberg, RM; Christensen, JP (2012): Antihistomonal effect of Artemisinin and Artemisia annua extracts in experimentally infected turkeys. 222-229.-9th International Symposium on Turkey Diseases; JUN 21-23, 2012; Berlin, Germany.

Thøfner, ICN; Liebhart, D; Hess, M; Schou, TW; Hess, C; Ivarsen, E; Fretté, XC; Christensen, LP; Grevsen, K; Engberg, RM; Christensen, JP (2012): Antihistomonal effect of artemisinin and Artemisia annua extracts in experimentally infected chickens and turkeys. 35--2nd International Symposium on Protozoal Infections in Poultry; Jul 6-7, 2012; Vienna, Austria.

2011

Zeitschriftenaufsatz

** Amin, A; Liebhart, D; Weissenböck, H; Hess, M (2011): Experimental infection of turkeys and chickens with a clonal strain of Tetratrichomonas gallinarum induces a latent infection in the absence of clinical signs and lesions. J Comp Pathol. 2011; 144(1):55-62

** Grafl, B; Liebhart, D; Windisch, M; Ibesich, C; Hess, M (2011): Seroprevalence of Histomonas meleagridis in pullets and laying hens determined by ELISA. Vet Rec. 2011; 168(6):160

** Hess, C; Maegdefrau-Pollan, B; Bilic, I; Liebhart, D; Richter, S; Mitsch, P; Hess, M (2011): Outbreak of cutaneous form of poxvirus on a commercial turkey farm caused by the species fowlpox. Avian Dis. 2011; 55(4):714-718

** Liebhart, D; Zahoor, MA; Prokofieva, I; Hess, M (2011): Safety of avirulent histomonads to be used as a vaccine determined in turkeys and chickens. Poult Sci. 2011; 90(5):996-1003
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** Zahoor, MA; Liebhart, D; Hess, M (2011): Progression of histomonosis in commercial chickens following experimental infection with an in vitro propagated clonal culture of Histomonas meleagridis. Avian Dis. 2011; 55(1):29-34

Kongressbeitrag in einer Zeitschrift

** Hess, M; Liebhart, D (2011): A live vaccine is safe and efficient to protect poultry against histomonosis. 4th Annual Global Congress on Vaccine and International Society for Vaccines (ISV), Vienna, AUSTRIA, OCT 03-05, 2010. Procedia Vaccinol (4) 100-103.

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Grafl, B; Liebhart, D; Windisch, M; Ibesich, C; Hess, M (2011): Seroprevalence of Histomonas meleagridis in chickens determined by ELISA. 453-457.-17th Congress of the World Veterinary Poultry Association; AUG 14-18, 2011; Cancun, Mexiko.

Hess, C; Mägdefrau-Pollan, B; Bilic, I; Liebhart, D; Mitsch, P; Richter, S; Hess, M (2011): Cutaneous form of fowlpox virus infection on a commercial meat turkey farm. -6th International Symposium on Turkey Production; JUN 16-18, 2011; Berlin, Germany.

Hess, C; Mägdefrau-Pollan, B; Liebhart, D; Bilic, I; Richter, S; Mitsch, P; Prokofieva, I; Hess, M (2011): Poxvirus infection on a turkey farm caused by the species fowlpox. 547-550.-17th Congress of the World Veterinary Poultry Association; AUG 14-18, 2011; Cancun, Mexiko.

Hess, M; Liebhart, D (2011): Vaccination induces efficient and safe protection against histomonosis in turkeys. 339-340.-XVth ISAH congress 2011; JUL 3, 2011; Vienna, Austria.

Hess, M; Liebhart, D; Grafl, B; Ibesich, C; Zahoor, A (2011): Untersuchungen zur Histomonose bei Hühnern. 55-57.-80. Fachgespräch über Geflügelkrankheiten; MAY 12-13, 2011; Hannover, Deutschland. (ISBN: 978-3-86345-046-5 )

Liebhart, D; Ganas P; Bilic, I; Leveque, G; Hess, M (2011): An amoeba species isolated from turkeys suffering from histomonosis did not trigger clinical signs or mortality in experimentally infected poults. 668-672.-17th Congress of the World Veterinary Poultry Association; AUG 14-18, 2011; Cancun, Mexiko.

Liebhart, D; Zahoor, MA; Jaskulska, B; Hess, M (2011): Gradual attenuation of virulent Histomonas meleagridis after 95 and 295 in vitro passages, assessed in vivo. -17th Congress of the World Veterinary Poultry Association; AUG 14-18, 2011; Cancun, Mexiko.

Liebhart, D; Zentek, J; Wendler, K; Hess, M (2011): Composition of the diet has severe influence on the incidence of histomonosis. -6th International Symposium on Turkey Production; JUN 16-18, 2011; Berlin, GERMANY.

Liebhart, D; Zentek J; Wendler K; Hess, M (2011): The level of non-starch polysaccharides in turkey feed can influence the infection with Histomonas meleagridis. 673-678.-17th Congress of the World Veterinary Poultry Association; AUG 14-18,2011; Cancun, Mexiko.

Mostegl, M; Dinhopl, N; Richter, B; Binanti, D; Chvala-Mannsberger, S; Nedorost, N; Maderner, A; Habenbacher, B; Janauschek, V; Ondrovics, M; Wetscher, A; Schiessl, P; Prouzova, P; Gurtner, S; Karakas, Z [and 2 others] (2011): Chromogenic in situ hybridization as a tool for identification of emerging protist species in tissue samples. 155-155.-International Meeting on Emerging Diseases and Surveillance 2011; FEB 4-7, 2011; Vienna, AUSTRIA.

Naundrup Thofner, IC; Liebhart, D; Hess, M; Schou WT; Christensen, JP (2011): Screening of Artemisia annua compounds against Histomonas meleagridis. 949-953.-17th Congress of the World Veterinary Poultry Association; AUG 14-18, 2011; Cancun, Mexiko.

2010

Zeitschriftenaufsatz

** Amin, A; Neubauer, C; Liebhart, D; Grabensteiner, E; Hess, M (2010): Axenization and optimization of in vitro growth of clonal cultures of Tetratrichomonas gallinarum and Trichomonas gallinae. Exp Parasitol. 2010; 124(2):202-208

** Liebhart, D; Windisch, M; Hess, M (2010): Oral vaccination of 1-day-old turkeys with in vitro attenuated Histomonas meleagridis protects against histomonosis and has no negative effect on performance. Avian Pathol. 2010; 39(5):399-403

** Mostegl, MM; Richter, B; Nedorost, N; Maderner, A; Dinhopl, N; Kulda, J; Liebhart, D; Hess, M; Weissenböck, H (2010): Design and validation of an oligonucleotide probe for the detection of protozoa from the order Trichomonadida using chromogenic in situ hybridization. Vet Parasitol. 2010; 171(1-2):1-6
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Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Hess, M; Zahoor, MA; Liebhart, D (2010): Experimental infections support field data about the importance of Histomonas meleagridis infections in chickens. 252--XIIIth European Poultry Conference; AUG 23-27,2010; Tours, FRANCE.

Liebhart, D; Prokofieva, I; Zahoor, MA; Hess, M (2010): Prevalence of Histomonas meleagridis in turkeys following infection with a vaccine and a virulent strain. -8th International Symposium on Turkey Diseases; MAY 27-29, 2010; Berlin, GERMANY.

Liebhart, D, Sanglhuber-Sobe; Hess, M (2010): Slugs as a potential vector for introduction of Histomonas meleagridis in a turkey flock – a case report. 877--XIIIth European Poultry Conference; AUG 23-27, 2010; Tours, FRANCE.

2009

Zeitschriftenaufsatz

** Liebhart, D; Hess, M (2009): Oral infection of turkeys with in vitro-cultured Histomonas meleagridis results in high mortality. Avian Pathol. 2009; 38(3):223-227

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Liebhart, D; Hess, M (2009): Oral vaccination of day-old birds is capable to protect turkeys against histomonosis. 201-201.-16th Congress of the World Veterinary Poultry Association; NOV, 8-12,2009; Marrakech, Marokko.

Liebhart, D; Windisch, M; Hess, M (2009): Experimentelle Untersuchung zur oralen Immunisierung von Puten gegen Histomonose. 71-72.-Proceedings Tagung der DVG-Fachgruppe "Parasitologie und parasitäre Krankheiten" - Diagnostik, Epidemiologie und Bekämpfung von Parasitosen bei Nutz-, Haus- und Heimtieren.; JUN 17-19, 2009; Leipzig, GERMANY.

Liebhart, D; Windisch, M; Hess, M (2009): Oral infection of turkeys with in vitro propagated Histomonas meleagridis. -Meeting of the workgroup 10 (Turkey) of WPSA; MAY 29-30, 2009; Berlin, GERMANY.

Windisch, M; Liebhart, D; Ibesich, C; Hess, M (2009): ELISA as a new diagnostic tool to monitor the infection status of chickens for Histomonas meleagridis. 199-199.-16th Congress of the World Veterinary Poultry Association; NOV, 8-12, 2009; Marrakech, Marokko.

2008

Zeitschriftenaufsatz

** Grabensteiner, E; Liebhart, D; Arshad, N; Hess, M (2008): Antiprotozoal activities determined in vitro and in vivo of certain plant extracts against Histomonas meleagridis, Tetratrichomonas gallinarum and Blastocystis sp. Parasitol Res. 2008; 103(6):1257-1264

** Hess, M; Liebhart, D; Grabensteiner, E; Singh, A (2008): Cloned Histomonas meleagridis passaged in vitro resulted in reduced pathogenicity and is capable of protecting turkeys from histomonosis. Vaccine. 2008; 26(33):4187-4193

** Liebhart, D; Grabensteiner, E; Hess, M (2008): A virulent mono-eukaryotic culture of Histomonas meleagridis is capable of inducing fatal histomonosis in different aged turkeys of both sexes, regardless of the infective dose. Avian Dis. 2008; 52(1):168-172

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Hess, M; Grabensteiner, E; Liebhart, D; Windisch, M (2008): Some principle requirements to study drug efficacy against histomonosis in vitro and in vivo. -7th International Symposium on Turkey Diseases; JUN 19-21, 2008; Berlin, DEUTSCHLAND.

Liebhart, D; Hess, M (2008): Orale Infektion von Puten mit in vitro kultivierten Histomonaden. -75. Fachgespräch über Geflügelkrankheiten, Deutsche Veterinärmedizinische Gesellschaft, Fachgruppe "Geflügelkrankheiten"; NOV 6-7, 2008; Hannover, DEUTSCHLAND.

Liebhart, D; Jaskulska, B; Hess, M (2008): Vergleichende Pathogenitätsbestimmung einer klonalen Histomonas meleagridis Kultur in Puten: virulente versus in vitro attenuierte Parasiten. -Tagung der Deutschen Veterinärmedizinischen Gesellschaft, Fachgruppe Parasitologie und parasitäre Krankheiten; JUL 9-11,2008; Celle, DEUTSCHLAND.

2007

Kongressbeitrag in einer Zeitschrift

** Grabensteiner, EL; Liebhart, D; Arshad, N; Hess, M (2007): The need of in vivo experiments to validate the effects noticed in vitro of certain plant extracts against Histomonas meleagridis, Tetratrichomonas gollinarum and Blastocystis pp. 55th International Congress and Annual Meeting of the Society for Medicinal Plant Research, Graz, AUSTRIA, SEP 2-6, 2007. Planta Med (73), 9 810-810.

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Grabensteiner, E; Liebhart, D; Arshad, N; Hess, M (2007): In vivo experiments are crucial to validate the effects noticed in vitro of certain plant extracts against Histomonas meleagridis. -International Symposium on Protozoal Infections in Poultry; JUL 6-7, 2007; Vienna, AUSTRIA.

Hess, M; Liebhart, D; Grabensteiner, E; Singh, A (2007): Vaccination strategy to prevent histomonosis in turkeys. -International Symposium on Protozoal Infections in Poultry; JUL 6-7, 2007; Vienna, AUSTRIA.

2006

Zeitschriftenaufsatz

** Grabensteiner, E; Liebhart, D; Weissenböck, H; Hess, M (2006): Broad dissemination of Histomonas meleagridis determined by the detection of nucleic acid in different organs after experimental infection of turkeys and specified pathogen-free chickens using a mono-eukaryotic culture of the parasite. Parasitol Int. 2006; 55(4):317-322

** Hess, M; Grabensteiner, E; Liebhart, D (2006): Rapid transmission of the protozoan parasite Histomonas meleagridis in turkeys and specific pathogen free chickens following cloacal infection with a mono-eukaryotic culture. Avian Pathol. 2006; 35(4):280-285

** Liebhart, D; Weissenböck, H; Hess, M (2006): In-situ hybridization for the detection and identification of Histomonas meleagridis in tissues. J Comp Pathol. 2006; 135(4):237-242

Kongressbeitrag in einer Zeitschrift

Hess, M; Grabensteiner, E; Liebhart, D (2006): The benefit of cloned Histomonas meleagridis administered via the cloaca to reproduce histomoniasis (blackhead) in poultry. World's Poultry Science Journal 62,(Suppl.).

Publizierter (zitierfähiger) Beitrag für wissenschaftliche Veranstaltung in Proceedings (A2)

Hess, M; Grabensteiner, E; Liebhart, D (2006): Untersuchung zur Histomoniasis des Geflügels unter definierten experimentellen Bedingungen. 59-59.-22. Jahrestagung der Deutschen Gesellschaft für Parasitologie; FEB 22-25, 2006; Wien.

Liebhart, D; Weissenböck, H; Hess, M (2006): In situ Hybridisierung zum Nachweis von Histomonas meleagridis, Tetratrichomonas gallinarum und Blastocystis spp. 164-164.-22. Jahrestagung der Deutschen Gesellschaft für Parasitologie; FEB 22-25, 2006; Wien.

2005

Liebhart, D; Weissenböck, H; Hess, M (2005): In situ Hybridisierung zum Nachweis von Histomonas meleagridis, Tetratrichomonas gallinarum und Blastocystis spp. 16-16.-68. Fachgespräch über Geflügelkrankheiten; MAY 12-13,2005; Hannover, DEUTSCHLAND.

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