研究業績

Tashiro K, Segawa T, Konishi K, Seki F, Katoh H, Ishibashi T, Takeda M, Itou T. Serological evidence of cetacean morbillivirus infection in common bottlenose dolphins in Japan. Microbiol Immunol. 2025.https://doi.org/10.1111/1348-0421.13207

Ito T, Segawa T. Hematology and Plasma Biochemistry in Whale Sharks (Rhincodon typus): Baseline Reference Intervals Based on Captivity Status, Blood Sampling Sites, and Handling Methods. Zoological Studies. 2025.https://zoolstud.sinica.edu.tw/Journals/64/64-01.html

Ishisaka S, Yokotani Y, Segawa T, Itou T. Characteristics of neutrophil chemotaxis in bottlenose dolphin (Tursiops truncatus). Vet Immunol Immunopathol. 2025. https://www.sciencedirect.com/science/article/pii/S0165242725000030?via%3Dihub

Tashiro K, Segawa T, Suzuki M, Kanaji Y, Maeda H, Itou T. Cultivation of primary cells derived from three organs of a striped dolphin (Stenella coeruleoalba) using a simple culture method. In Vitro Cell Dev Biol Anim. 2024. 10.1007/s11626-024-00939-7 （簡便な培養法を用いたスジイルカの3つの臓器を由来とする初代培養細胞の培養）

Shirakata C, Hanaue R, Ohtsubo H, Shiozaki A, Ohishi K, Ishisaka S, Ohtsu D. A case report of Live-stranded rough-toothed dolphin (Steno bredanensis) with plastic debris ingestion on the Pacific coast of Japan. J Vet Med Sci. 2024: 86 (6): 665-669. https://doi.org/10.1292/jvms.23-0329

Tashiro K, Hikobe K, Segawa T, Suzuki M, Maeda K, Itou T. Establishment and characterization of a novel lung cell line derived from the common bottlenose dolphin. In Vitro Cell Dev Biol Anim. 2024: 60(1): 98-105. 10.1007/s11626-023-00831-w（バンドウイルカ肺由来新規細胞株の樹立と特性評価）

Okamoto S, Echigoya Y, Tago A, Segawa T, Sato Y, Itou T. Antiviral efficacy of RNase H-dependent gapmer antisense oligonucleotides against Japanese encephalitis virus. Int J Mol Sci. 2023. 10.3390/ijms241914846

Segawa T, Ohno Y, Kurita M, Ishibashi T, Yoshioka M. Helicobacter delphinicola infection and the risk of gastric disease in common bottlenose dolphin. Dis Aquat Organ. 2023. 10.3354/dao03751

石坂聡一朗, 瀬川太雄, 石川創, 伊藤琢也. 紀伊半島沖で捕獲されたハンドウイルカ（Tursiops truncatus）より検出され たイルカ裂頭条虫（Diphyllobothrium stemmacephalum）. 日本野生動物医学会誌. 2023. https://doi.org/10.5686/jjzwm.28.121

Tashiro K, Segawa T, Futami T, Suzuki M, Itou T. Establishment and characterization of a novel kidney cell line derived from the common bottlenose dolphin. In Vitro Cell Dev Biol Anim. 2023: 59(7): 536-549. 10.1007/s11626-023-00786-y （バンドウイルカ腎臓由来新規細胞株の樹立と特性評価）

Yokomori T, Ohnuma A, Tozaki T, Segawa T, Itou T. Identification of Personality-Related Candidate Genes in Thoroughbred Racehorses Using a Bioinformatics-Based Approach Involving Functionally Annotated Human Genes. Animals. 2023. 10.3390/ani13040769

Nabeshima K, Sato S, Brinkerhoff RJ, Amano M, Kabeya H, Itou T, Maruyama S. Prevalence and Genetic Diversity of Bartonella Spp. in Northern Bats (Eptesicus nilssonii) and Their Blood-Sucking Ectoparasites in Hokkaido, Japan. Microb Ecol. 2022. 10.1007/s00248-021-01935-0.

Lin Z, Hosoya S, Sato M, Mizuno N, Kobayashi Y, Itou T, Kikuchi K. Genomic selection for heterobothriosis resistance concurrent with body size in the tiger pufferfish, Takifugu rubripes. Sci Rep. 2020. 10.1038/s41598-020-77069-z

Takahashi R, Sakai M, Kogi K, Morisaka T, Segawa T, Ohizumi H. Prey Species and Foraging Behaviour of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) Around Mikura Island in Japan. Aquatic Mammals. 2020. https://doi.org/10.1578/am.46.6.2020.531

Segawa T, Ohno Y, Tsuchida S, Ushida K, Yoshioka M. Helicobacter delphinicola sp. nov., isolated from common bottlenose dolphins Tursiops truncatus with gastric diseases. Dis Aquat Organ. 2020. 10.3354/dao03511 (Validation list no. 199. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2021. https://doi.org/10.1099/ijsem.0.004773) 

Suzuki A, Ueda K, Segawa T, Suzuki M. Fecal microbiota of captive Antillean manatee Trichechus manatus manatus. FEMS Microbiol Lett. 2019. 10.1093/femsle/fnz134

Yokomori T, Tozaki T, Mita H, Miyake T, Kakoi H, Kobayashi Y, Kusano K, Itou T. Heritability estimates of the position and number of facial hair whorls in Thoroughbred horses. BMC Res Notes. 2019. 10.1186/s13104-019-4386-x

Kobayashi Y, Shimazu T, Murata K, Itou T, Suzuki Y. An endogenous adeno-associated virus element in elephants. Virus Res. 2019. 10.1016/j.virusres.2018.04.015

Sato M, Hosoya S, Yoshikawa S, Ohki S, Kobayashi Y, Itou T, Kikuchi K. A highly flexible and repeatable genotyping method for aquaculture studies based on target amplicon sequencing using next-generation sequencing technology. Sci Rep. 2019. 10.1038/s41598-019-43336-x

Suzuki A, Segawa T, Sawa S, Nishitani C, Ueda K, Itou T, Asahina K, Suzuki M. Comparison of the gut microbiota of captive common bottlenose dolphins, Tursiops truncatus in three aquaria. J Appl Microbial. 2019. 10.1111/jam.14109

Suzuki M, Banno K, Usui T, Funasaka N, Segawa T, Kirihata T, Kamisako H, Ueda K, Munakata A. Seasonal changes in plasma levels of thyroid hormones and the effects of the hormones on cellular ATP content in common bottlenose dolphin. Gen Comp Endocrinol. 2018. 10.1016/j.ygcen.2018.03.008

Kano R, Kobayashi Y, Nishikawa A, Murata R, Itou T, Ito T, Suzuki K, Kamata H. Next-generation sequencing analysis of bacterial flora in bovine Prototheca mastitic milk. Med Mycol J. 2018. https://doi.org/10.3314/mmj.18-00004

Hidaka Y, Lim CK, Takayama-Ito M, Park CH, Kimitsuki K, Shiwa N, Inoue KI, Itou T. Segmentation of the rabies virus genome. Virus Res. 2018. 10.1016/j.virusres.2018.05.017

Kobayashi Y, Pybus OG, Itou T, Suzuki Y. Conserved secondary structures predicted within the 5′ packaging signal region of influenza A virus PB2 segment. Meta Gene. 2018. https://doi.org/10.1016/j.mgene.2017.11.006

Kobayashi Y, Horie M, Nakano A, Murata K, Itou T, Suzuki Y. Exaptation of Bornavirus-Like Nucleoprotein Elements in Afrotherians. PLoS Pathog. 2016. 10.1371/journal.ppat.1005785

Suzuki M, Wakui H, Itou T, Segawa T, Inoshima Y, Maeda K, Kikuchi K. Two isoforms of aquaporin 2 responsive to hypertonic stress in the bottlenose dolphin. J Exp Biol. 2016. 10.1242/jeb.132811 

Itou T, Fukayama T, Mochizuki N, Kobayashi Y. Deberaldini ER, Carvalho AA, Ito FH, Sakai T. Molecular epidemiological tracing of a cattle rabies outbreak lasting less than a month in Rio Grande do sul in southern Brazil. BMC Res Notes. 2016. 10.1186/s13104-016-1898-5

Segawa T, Kobayashi Y, Inamoto S, Suzuki M, Endoh T, Itou T. Identification and Expression Profiles of microRNA in Dolphin. Zoolog Sci. 2016. 10.2108/zs150090

Sakai T, Ishii A, Segawa T, Takagi Y, Kobayashi Y, Itou T. Establishing conditions for the storage and elution of rabies virus RNA using FTA® cards. J Vet Med Sci. 2015. 10.1292/jvms.14-0227

Segawa T, Kobayashi Y, Sase Y, Itou T, Suzuki M, Endoh T, Nakanishi T, Sakai T. Easy-to-use rapid gene amplification method for direct detection of RNA and DNA viruses in sera and feces from various animals. J Virol Methods. 2014. 10.1016/j.jviromet.2014.01.019

Kobayashi Y, Sugimoto K, Mochizuki N, Segawa T, Itou T, Carvalho AA, Nociti DP, Mello RM, Santos AK, Ito FH, Sakai T. Isolation of a phylogenetically distinct rabies virus from a tufted capuchin monkey (Cebus apella) in Brazil. Virus Res. 2013. 10.1016/j.virusres.2013.09.020

Segawa T, Karatani N, Itou T, Suzuki M, Sakai T. Cloning and characterization of bottlenose dolphin (Tursiops truncatus) interleukin-10. Vet Immunol Immunopathol. 2013. 10.1016/j.vetimm.2013.04.009

Segawa T, Otsuka T, Itou T, Suzuki M, Karatani N, Sakai T. Characterization of the circulating serum amyloid A in bottlenose dolphins. Vet Immunol Immunopathol. 2013. 10.1016/j.vetimm.2012.12.006

Aratani H, Segawa T, Itou T, Sakai T. Cloning and Quantification of Ferret Serum Amyloid A. J Vet Med Sci. 2013. 10.1292/jvms.12-0225

Segawa T, Amatsuji H, Suzuki K, Suzuki M, Yanagisawa M, Itou T, Sakai T, Nakanishi T. Molecular characterization and validation of commercially available methods for haptoglobin measurement in bottlenose dolphin.  Results Immunol. 2013. 10.1016/j.rinim.2013.05.003

Echigoya Y, Morita S, Itou T, Sakai T. Effects of extracellular lactate on production of reactive oxygen species by equine polymorphonuclear leukocytes in vitro. Am J Vet Res. 2012. 10.2460/ajvr.73.8.1290

Mochizuki N, Kawasaki H, Silva ML, Afonso JA, Itou T, Ito FH, Sakai T. Molecular epidemiology of livestock rabies viruses isolated in the northeastern Brazilian states of Paraíba and Pernambuco from 2003 - 2009. BMC Res Notes. 2012. 10.1186/1756-0500-5-32

Kobayashi Y, Suzuki Y, Itou T, Ito FH, Sakai T, Gojobori T. Evolutionary history of dog rabies in Brazil. J Gen Virol. 2011. 10.1099/vir.0.026468-0

Echigoya Y, Okabe H, Itou T, Endo H, Sakai T.
Molecular characterization of glycogen synthase 1 and its tissue expression profile with type II hexokinase and muscle-type phosphofructokinase in horses. Mol Biol Rep. 2011. 0.1007/s11033-010-0129-8

Mochizuki N, Kobayashi Y, Sato G, Hirano S, Itou T, Ito FH, Sakai T. Determination and molecular analysis of the complete genome sequence of two wild-type rabies viruses isolated from a haematophagous bat and a frugivorous bat in Brazil. J Vet Med Sci. 2011. 10.1292/jvms.10-0238 

Segawa T, Itou T, Echigoya Y, Suzuki M, Koie H, Sakai T. Molecular cloning and expression of bottlenose dolphin CD34. Vet Immunol Immunopathol. 2011. 10.1016/j.vetimm.2010.10.018

Segawa T, Itou T, Suzuki M, Moritomo T, Nakanishi T, Sakai T. Hematopoieticcell populations in dolphin bone marrow: Analysis of colony formation and differentiation. Results Immunol. 2011. 10.1016/j.rinim.2011.05.004

Itou T, Koie H, Segawa T, Kato M, Yanagisawa M, Ueda K, Kuwano R, Suzuki M, Moritomo T, Sakai T. Bone marrow biopsy from the flipper of a dolphin. Vet J. 2010. 10.1016/j.tvjl.2009.05.016

Saitou Y, Kobayashi Y, Hirano S, Mochizuki N, Itou T, Ito FH, Sakai T. A method for simultaneous detection and identification of Brazilian dog- and vampire bat-related rabies virus by reverse transcription loop-mediated isothermal amplification assay. J Virol Methods. 2010. 10.1016/j.jviromet.2010.04.008

Kobayashi Y, Suzuki Y, Itou T, Carvalho AA, Cunha EM, Ito FH, Gojobori T, Sakai T. Low genetic diversities of rabies virus populations within different hosts in Brazil. Infect Genet Evol. 2010. 10.1016/j.meegid.2009.12.003

Nakata M, Otsubo K, Kikuchi T, Itou T, Sakai T. Chemotactic properties and absence of the formyl peptide receptor in ferret (Mustela putorius furo) neutrophils. Res Vet Sci. 2010. 10.1016/j.rvsc.2009.05.019

Hirano S, Itou T, Shibuya H, Kashiwazaki Y, Sakai T. Molecular epidemiology of rabies virus isolates in Uganda. Virus Res. 2010. 10.1016/j.virusres.2009.10.003

Hirano S, Sato G, Kobayashi Y, Itou T, Rong Luo T, Liu Q, Jin NY, Xuan X, Sakai T. Analysis of Chinese rabies virus isolates from 2003-2007 based on P and M protein genes. Acta Virol. 2010. 10.4149/av_2010_02_91

Hirano S, Itou T, Carvalho AA, Ito FH, Sakai T. Epidemiology of vampire bat-transmitted rabies virus in Goiás, central Brazil: re-evaluation based on G-L intergenic region. BMC Res Notes. 2010. 10.1186/1756-0500-3-288

Echigoya Y, Sato T, Itou T, Endo H, Sakai T. Molecular characterization and expression pattern of the equine lactate dehydrogenase A and B genes. Gene. 2009. 10.1016/j.gene.2009.07.017

Mochizuki N, Kobayashi Y, Sato G, Itou T, Gomes AA, Ito FH, Sakai T. Complete genome analysis of a rabies virus isolate from Brazilian wild fox. Arch Virol. 2009. 10.1007/s00705-009-0475-9

Sato G, Kobayashi Y, Mochizuki N, Hirano S, Itou T, Cunha EM, Ito FH, Sakai T. A unique substitution at position 333 on the glycoprotein of rabies virus street strains isolated from non-hematophagous bats in Brazil. Virus Genes. 2009. 10.1007/s11262-008-0290-5

Kato M, Itou T, Nagatsuka N, Sakai T. Production of monoclonal antibody specific for bottlenose dolphin neutrophils and its application to cell separation. Dev Comp Immunol. 2009. 10.1016/j.dci.2008.08.003

Kobayashi Y, Sato G, Mochizuki N, Hirano S, Itou T, Carvalho AA, Albas A, Santos HP, Ito FH, Sakai T. Molecular and geographic analyses of vampire bat-transmitted cattle rabies in central Brazil. BMC Vet Res. 2008. 10.1186/1746-6148-4-44

Echigoya Y, Sato T, Itou T, Endo H, Sakai T. Molecular characterization and expression of the equine M(1) and M(2)-pyruvate kinase gene. Comp Biochem Physiol B Biochem Mol Biol. 2008. 10.1016/j.cbpb.2008.06.006

Kobayashi Y, Okuda H, Nakamura K, Sato G, Itou T, Carvalho AA, Silva MV, Mota CS, Ito FH, Sakai T. Genetic analysis of phosphoprotein and matrix protein of rabies viruses isolated in Brazil. J Vet Med Sci. 2007. 0.1292/jvms.69.1145

Kobayashi Y, Sato G, Kato M, Itou T, Cunha EM, Silva MV, Mota CS, Ito FH, Sakai T. Genetic diversity of bat rabies viruses in Brazil. Arch Virol. 2007. 10.1007/s00705-007-1033-y

Kobayashi Y, Inoue N, Sato G, Itou T, Santos HP, Brito CJ, Gomes AA, Santos MF, Silva MV, Mota CS, Ito FH, Sakai T. Phylogenetic characterization of rabies virus isolates from Carnivora in Brazil. J Vet Med Sci. 2007. 10.1292/jvms.69.691

Sato T, Itou T, Sato G, Kobayashi Y, Endo H, Sakai T.  Sequencing of cDNA and proximal promoter of equine hexokinase II gene. DNA Seq. 2007. 10.1080/10425170601136648

Sato G, Kobayashi Y, Shoji Y, Sato T, Itou T, Ito FH, Santos HP, Brito CJ, Sakai T. Molecular epidemiology of rabies from Maranhao and surrounding states in the northeastern region of Brazil. Arch Virol. 2006. 10.1007/s00705-006-0770-7

Kobayashi Y, Ogawa A, Sato G, Sato T, Itou T, Samara SI, Carvalho AA, Nociti DP, Ito FH, Sakai T. Geographical distribution of vampire bat-related cattle rabies in Brazil. J Vet Med Sci. 2006. 10.1292/jvms.68.1097

Sato T, Sato G, Shoji Y, Itou T, Sakai T. Extraction and detection of mRNA from horsehair. J Vet Med Sci. 2006. 10.1292/jvms.68.503

Itou T, Collins LV, Thorén FB, Dahlgren C, Karlsson A. Changes in activation states of murine polymorphonuclear leukocytes (PMN) during inflammation: a comparison of bone marrow and peritoneal exudate PMN. Clin Vaccine Immunol. 2006. 10.1128/CVI.13.5.575-583.2006

Shoji Y, Kobayashi Y, Sato G, Gomes AA, Itou T, Ito FH, Sakai T. Genetic and phylogenetic characterization of rabies virus isolates from wildlife and livestock in Paraiba, Brazil. Acta Virol. 2006. http://www.elis.sk/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=128&category_id=5&option=com_virtuemart&vmcchk=1&Itemid=1 

Serada K, Moritomo T, Teshirogi K, Itou T, Shibashi T, Inoue Y, Nakanishi T. Comparison of respiratory burst activity of inflammatory neutrophils in ayu (Plecoglossus altivelis) and carp (Cyprinus carpio). Fish Shellfish Immunol. 2005. 10.1016/j.fsi.2005.01.007

Sato G, Tanabe H, Shoji Y, Itou T, Ito FH, Sato T, Sakai T. Rapid discrimination of rabies viruses isolated from various host species in Brazil by multiplex reverse transcription-polymerase chain reaction. J Clin Virol. 2005. 10.1016/j.jcv.2004.11.015

Kobayashi Y, Sato G, Shoji Y, Sato T, Itou T, Cunha EM, Samara SI, Carvalho AA, Nociti DP, Ito FH, Sakai T. Molecular epidemiological analysis of bat rabies viruses in Brazil. J Vet Med Sci. 2005. 10.1292/jvms.67.647

Itou T, Endo T, Sakai T, Karlsson A, Collins LV. Immunostimulatory oligodeoxynucleotides induce dolphin neutrophil NADPH-oxidase activation in a CpG-independent but phosphorothioate backbone-dependent manner. Dev Comp Immunol. 2005. 10.1016/j.dci.2004.12.003

Fukai K, Onoda H, Itou T, Sato M, Miura Y, Sakai T.  Genetic and serological characterization of novel serotype G8 bovine group A rotavirus strains isolated in Japan. J Vet Med Sci. 2004. 10.1292/jvms.66.1413

Shoji Y, Kobayashi Y, Sato G, Itou T, Miura Y, Mikami T, Cunha EM, Samara SI, Carvalho AA, Nocitti DP, Ito FH, Kurane I, Sakai T. Genetic characterization of rabies viruses isolated from frugivorous bat (Artibeus spp.) in Brazil. J Vet Med Sci. 200410.1292/jvms.66.1271

Sato G, Itou T, Shoji Y, Miura Y, Mikami T, Ito M, Kurane I, Samara SI, Carvalho AA, Nociti DP, Ito FH, Sakai T. Genetic and phylogenetic analysis of glycoprotein of rabies virus isolated from several species in Brazil. J Vet Med Sci. 2004. 10.1292/jvms.66.747

Itou T, Yoshida Y, Shoji Y, Sugisawa H, Endo T, Sakai T. Molecular cloning and expression of bottlenose dolphin (Tursiops truncatus) interleukin-8. J Vet Med Sci. 2003. 10.1292/jvms.65.1351

Uchinuno Y, Ito T, Goto Y, Miura Y, Ishibashi K, Itou T, Sakai T. Differences in Ibaraki virus RNA segment 3 sequences from three epidemics. J Vet Med Sci. 2003. 10.1292/jvms.65.1257

Sugisawa H, Itou T, Saito M, Moritomo T, Miura Y, Sakai T.  A low-molecular-weight fraction of bovine colostrum and milk enhances the oxidative burst activity of polymorphonuclear leukocytes. Vet Res Commun. 2003. 10.1023/a:1025737623792

Moritomo T, Serata K, Teshirogi K, Aikawa H, Inoue Y, Itou T, Nakanishi T. Flow cytometric analysis of the neutrophil respiratory burst of ayu, Plecoglossus altivelis: comparison with other fresh water fish. Fish Shellfish Immunol. 2003. 10.1016/s1050-4648(02)00136-5

Ito M, Itou T, Shoji Y, Sakai T, Ito FH, Arai YT, Takasaki T, Kurane I. Discrimination between dog-related and vampire bat-related rabies viruses in Brazil by strain-specific reverse transcriptase-polymerase chain reaction and restriction fragment length polymorphism analysis. J Clin Virol. 2003. 10.1016/s1386-6532(02)00048-3

Itou T, Shoji Y, Shiraishi R, Sugisawa H, Endo T, Inoue Y, Sakai T. Priming of dolphin neutrophil respiratory burst by recombinant tumor necrosis factor alpha. Dev Comp Immunol. 2002. 10.1016/s0145-305x(02)00023-x

Shiraishi R, Itou T, Sugisawa H, Shoji Y, Endo T, Sakai T. The respiratory burst activity of bottlenose dolphin neutrophils elicited by several stimulants. J Vet Med Sci. 2002. 10.1292/jvms.64.711

Itou T, Sugisawa H, Inoue Y, Jinbo T, Sakai T. Oxygen radical generation and expression of NADPH oxidase genes in bottlenose dolphin (Tursiops truncatus) neutrophils. Dev Comp Immunol. 2001. 10.1016/s0145-305x(00)00037-9

 

 

 

  

 

   

 

Kaede Tashiro, Takao Segawa, Miwa Suzuki, Takuya Itou. Establishment of novel dolphin cell lines as versatile tools for cetacean research and conservation（鯨類の研究および保全における汎用ツールとしての新規イルカ細胞株の樹立）．25th Biennial Conference on the Biology of Marine Mammals (Perth, Australia). 11月9～16日．ポスター発表．

田代楓, 瀬川太雄, 小西白峰, 關文緒, 加藤大志, 石橋敏章, 竹田誠, 伊藤琢也．国内飼育イルカにおける鯨類モルビリウイルスに対する中和抗体の解析．第167回日本獣医学会学術集会（帯広畜産大学）．9月10～13日．口頭発表．

Kaede Tashiro, Takao Segawa, Kiyotaka Konishi, Fumio Seki, Hiroshi Katoh, Toshiaki Ishibashi, Makoto Takeda, Takuya Itou． Serological evidence of cetacean morbillivirus infections in dolphins in the western North Pacific（北太平洋西部のイルカにおける鯨類モルビリウイルス感染の血清学的証拠）．The 4th Joint Meeting of Veterinary Science in East Asia（帯広畜産大学）．9月8～9日．ポスター発表．

石坂聡一朗，瀬川太雄，白形知佳，伊藤琢也．鯨偶蹄目に特有な，低温下で機能する顆粒球貪食能の発見．日本比較免疫学会第35回学術集会（慶応義塾大学）．8月30日～9月1日．口頭発表．

Kaito Akiba, Takao Segawa, Takashi Kamio, Yukako Odani, Yuichiro Akune, Masanori Kurita, Takuya Itou. Mycoplasmopsis sp. isolation from bronchoalveolar lavage fluid of beluga whale (Delphinapterus leucas). The 55th Annual Conference of International Association for Aquatic Animal Medicine. 5月19～23日．ポスター発表．

瀬川太雄，佐藤多美，山本桂子，木嶋祥子，伊藤琢也．イルカ類胃内に棲息する未知ウレアプラズマの分離と共生関係の検討．第51回日本マイコプラズマ学会（産総研）．5月17〜18日．口頭発表．

秋葉開人，瀬川太雄，神尾高志，小谷由佳子，阿久根雄一朗，栗田正徳，伊藤琢也．シロイルカ（Delphinapterus leucas）気管支肺胞洗浄液から分離された新種Mycoplasmopsis 属細菌．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．口頭発表．

鈴木秀治，瀬川太雄，松若流星，小澤賢一，前田洋一，佐々木善基，伊藤琢也．カバ腸内に棲息する細菌種の同定．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．ポスター発表．

松若流星，瀬川太雄，鈴木秀治，小澤賢一，伊藤琢也．キリンにおける腸内優占種の同定．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．ポスター発表．

瀬川太雄，大野佳，栗田正徳，石橋敏章，吉岡基．飼育下バンドウイルカにおけるHelicobacter delphinicola の感染と胃疾患との関連性．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．ポスター発表．

佐藤多美，瀬川太雄，山本桂子，木嶋祥子，伊藤琢也．培養細胞を用いたイルカ類と新種ウレアプラズマの共生関係の検討．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．ポスター発表．

田代楓，瀬川太雄，鈴木美和，伊藤琢也．鯨類と研究と臨床への応用に向けたスジイルカを由来とする初代培養細胞の作出．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．ポスター発表．

千田詠葉，瀬川太雄，山本桂子，木嶋祥子，天羽賢人，伊東隆臣，植田啓一，加来雅人，神尾高志，白形知佳，進藤英朗，和田夏海，伊藤琢也．分子系統解析から探るハクジラ類と新種ウレアプラズマ属細菌の共進化．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．ポスター発表．

田代智栄，瀬川太雄，半田由佳理，三谷伸也，若井嘉人，伊藤琢也．「海のコアラ」ジュゴンにおける腸内優占細菌種の同定 ～海牛類における新たな生息域外保全法の創出を目指して～．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．ポスター発表．

土山一更，瀬川太雄，伊藤琢也．脊椎動物におけるホルミルペプチド受容体（FPR）遺伝子の進化解析．第29回日本野生動物医学会（鹿児島大学）．9月23〜24日．ポスター発表．

田代 楓，瀬川 太雄，鈴木 美和，伊藤 琢也．バンドウイルカ腎臓由来新規細胞株の樹立と特性評価．第28回日本野生動物医学会（つくば国際会議場）．9月23〜24日．口頭発表．

千田 詠葉，瀬川 太雄，白形 知佳，高橋 明日香，奥村 奈佳，近藤 広考，渋谷 久，佐藤 多美，田代 智栄，伊藤 琢也．飼育下ゴマフアザラシ(Phoca largha)で見られたサルコイド様病変の一例．第28回日本野生動物医学会（つくば国際会議場）．9月23〜24日．口頭発表．

秋葉 開人，瀬川 太雄，白形 知佳，遠矢 幸伸，伊藤 琢也．飼育下オタリア(Otaria flavescens)皮膚病変からの San Miguel Sealion Virus 検出の試み．第28回日本野生動物医学会（つくば国際会議場）．9月23〜24日．ポスター発表．

瀬川 太雄，山寺 玲央， 山本 桂子，木嶋 祥子，清水 里紗，伊藤 琢也．マダライルカ(Stenella attenuata)前胃から分離した新種ウレアプラズマ属細菌．第28回日本野生動物医学会（つくば国際会議場）．9月23〜24日．口頭発表．

岡本 俊輔，越後谷 裕介，瀬川 太雄，佐藤 雪太，伊藤 琢也．日本脳炎ウイルス増殖抑制効果におけるRNA分解型アンチセンス核酸の塩基配列および修飾核酸の特異性．第165回日本獣医学会（オンラインライブ）．9月6〜8日．口頭発表．

岡本 俊輔, 越後谷 裕介, 瀬川 太雄, 佐藤 雪太, 伊藤 琢也．RNA分解型アンチセンス人工核酸による日本脳炎ウイルス増殖抑制効果．第68回日本ウイルス学会（web開催）．11月16－18日．口頭発表．