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Liebhart Dieter,

Beiträge für wissenschaftliche Veranstaltungen

Vortrag

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.

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.

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.

Liebhart, D (2016): Resolving immune traits of infectious diseases by advanced histological techniques. Workgroup Meeting COST Action FA1207: Towards Control of AvianCoronaviruses: Strategies for Diagnosis, Surveillance and Vaccination.; FEB 17-18, 2016; Vienna, AUSTRIA. 2016.

Liebhart, D (2016): Wichtige Parasiten beim Geflügel und deren Kontrolle. Tierhaltungstag Geflügel; DEZ 5, 2016; Marz, Austria. 2016.

Liebhart, D (2016): Histomonosis – present situation. Schwarzkopfkrankheit im Putenbestand – was tun, wenn die Diagnose steht?; NOV 18, 2016; Hannover, Germany. 2016.

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

Liebhart, D (2016): Schwarzkopfkrankheit bei Elterntieren. Elterntierfachtag Kirchberg; MÄR 8, 2016; Grafendorf, AUSTRIA. 2016.

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; 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): 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.

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.

Hess, C; Paudel, S; Kluger, S; Liebhart, D; Aurich, C; Hess, M (2015): Experimental infection with Gallibacterium anatis in SPF chickens causes pathological lesions in reproductive organs with clinical consequences on egg production and semen quality. Second symposium of the European College of Poultry Veterinary Science; JUN 26, 2015; Deventer, The Netherlands. 2015.

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): Darmparasiten beim Huhn – Erkrankungen vorbeugen und regulieren. BIO AUSTRIA Bauerntage; JAN 29, 2015; Wels, AUSTRIA. 2015.

Liebhart, D (2015): Darmparasiten bei Junghennen: Erkrankungen vorbeugen und regulieren. Junghennenfachtagung; NOV 11, 2015; Ansfelden, AUSTRIA. 2015.

Liebhart, D (2015): Investigations on the cellular immunity of chickens against infection withHistomonas meleagridis. Seminar on Infection Biology; JUN 29, 2015; Hannover, GERMANY. 2015.

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; Paudel, S; Wernsdorf, P; Käser, T; Meitz, S; Hess, C; Jensen-Jarolim, E; Hess, M (2015): Quantitative imaging analyses and flow cytometry proved the failure of 5-fluorouracil and cyclosporin to deplete a specific population of leukocytes. Second symposium of the European College of Poultry Veterinary Science; JUN 26, 2015; Deventer, THE NETHERLANDS. 2015.

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.

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.

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; Hofer, C; Hess, C; Hess, M (2014): Bedeutende Endoparasitosen des Huhnes – aktueller Kenntnisstand. Wissenschaftliche Sitzung der österreichischen Gesellschaft der Tierärzte Sektion Geflügelforschung; OKT 30, 2014; Vienna, AUSTRIA. 2014.

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; 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.

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.

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.

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.

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 )

Grafl, B; Liebhart, D; Tichy, A; Aigner, A; Prokofieva, I; Bachmeier, J; Hess, M (2012): Clinical symptoms in broiler flocks in the cause of vertically transmitted fowl adenovirus serotype 1 inducing gizzard erosions. 1st International Symposium of ECPVS (European College of Poultry Veterinary Science) ; Jul 5, 2012; Vienna, Austria. 2012.

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.

Liebhart, D; Zahoor, MA; Ganas, P; Jaskulska, B; Hess, M (2012): In vitro attenuated and virulent Histomonas meleagridis target different organs in turkeys, independent of co-cultivated bacteria. 46th Annual Meeting of the Austrian Society of Tropical Medicine and Parasitology ; Nov 22-24, 2012; Innsbruck Austria. 2012.

Mitsch, P; Sowa, R; Hess, C; Liebhart, D; Hess, M (2012): High mortality in a broiler flock traced back to the use of maize spindles as bedding material, a case report. 1st International Symposium of ECPVS (European College of Poultry Veterinary Science); Jul 5, 2012; Vienna, Austria. 2012.

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.

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): Infektion von Mastputen mit Hühnerpocken – Ein Fallbericht. Wissenschaftliche Sitzung der Sektion Geflügelforschung der ÖGT; MAY 19, 2011; Vienna, Austria. 2011.

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): 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.

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; 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.

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.

Hess, M; Liebhart, D; Zahoor, A (2010): A live vaccine is safe and efficient to protect poultry against histomonosis. 4th Vaccine and ISV Annual Global Congress; OCT 3-5,2010; Vienna, Austria. 2010.

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.

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.

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.

Liebhart, D; Sanglhuber-Sobe, I; Hess, M (2008): Schnecken als mögliche Eintragsquelle von Histomonas meleagridis in einen Putenbetrieb. Vortragsveranstaltung ÖGT – WPSA - ZAG; NOV 20, 2008; Vienna, AUSTRIA. 2008.

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.

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.

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.

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 (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.

Poster

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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; 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.

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.

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.

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.

Thøfner, ICN; Hess, C; Liebhart, D; Hess, M; Schou, TW; Ivarsen, E; Fretté, XC; Christensen, LP; Grevsen, K; Engberg, RM; Christensen, JP (2012): Effects of artemisinin and Artemisia annua extracts on xenic bacteria isolated from clonal cultures of Histomonas meleagridis. Copenhagen Microbiology Center (CMC) Symposium 2012; Oct 5, 2012; Copenhagen, Denmark. 2012.

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.

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.

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.

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.).

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