1) Kanapen K, Kerkhofs P, and Mannerickx M. 1993. Eradication of enzootic bovine leukosis in Belgium:Results of the mass detection on the national cattle population in 1989, 1990 and 1991. Ann. Med. Vet.137:197-201.
2) 農林水産省. 2021. 監視伝染病の発生状況. [Online] https://www.maff.go.jp/j/syouan/douei/kansi_densen/attach/pdf/kansi_de nsen-10.pdf.
3) OIE. The 117 OIE-Listed diseases. [Online] https://www.oie.int/en/what- we-do/animal-health-and-welfare/animal-diseases/old-classification-of- diseases-notifiable-to-the-oie-list-b/.
4) OIE. 2021. Terrestrial Animal Health Code: Chapter 1.3. DISEASES, INFECTIONS AND IFFESTATIONS LISTED BY THE OIE. [Online] https://www.oie.int/fileadmin/Home/eng/Health_standards/tahc/current/c hapitre_oie_listed_disease.pdf.
5) Rodriguez SM, Florins A, Gillet N, de Brogniez A, Sanchez-Alcaraz MT, Boxus M, Boulanger F, Gutierrez G, Trono K, Alvarez I, Vagnoni L and Willems L. 2011. Preventive and therapeutic strategies for bovine leukemia virus: lessons for HTLV. Viruses. 3:1210-1248.
6) Sagata N, Yasunaga T, Tsuzuku-Kawamura J, Ohishi K, Ogawa Y and Ikawa Y. 1985. Complete nucleotide sequence of the genome of bovine leukemia virus: its evolutionary relationship to other retroviruses. Proc. Natl. Acad. Sci. USA. 82:677-681.
7) Gillet N, Florins A, Boxus M, Burteau C, Nigro A, Vandermeers F, Balon H, Bouzar AB, Defoiche J, Burny A, Reichert M, Kettmann R and Willems L. 2007. Mechanisms of leukemogenesis induced by bovine leukemia virus: Prospects for novel anti-retroviral therapies in human. Retrovirology 4:18.
8) Barez PY, Brognies AD, Carpentier A, Gazon H, Gillet N, Gutierres G, Hamaidia M, Jacques JR, Perike S, Sriramareddy SN, Renotte N, Staumont B, Reichert M, Trono K and Willems L. 2015. Recent Advances in BLV Research. Viruses. 7:6080-6088.
9) Kattmann R, Meunier-Rotival M, Cortadas J, Cuny G, Ghysdael J, Mammerickx M, Burny A and Bernardi G. 1979. Integration of bovine leukemia virus DNA in the bovine genome. Proc. Natl. Acad. Sci. USA. 76: 4822-4826.
10) Burny A, Cleuter Y, Kettmann R, Mammerickx M, Marbaix G, Portetelle D, van den Broeke A, Willems L and Thomas R. 1988. Bovine leukaemia: Facts and hypotheses derived from the study of an infectious cancer. Vet. Microbiol. 17:197-218.
11) Ferrer JF, Marshak RR, Abt DA and Kenyon SJ. 1978. Persistent lymphocytosis in cattle: Its cause, nature and relation to lymphosarcoma. Ann. Rech. Vet. 9:851-857.
12) Ferrer JF, Marshak RR, Abt DA and Kenyon SJ. 1979. Relationship between lymphosarcoma and persistent lymphocytosis in cattle: A review. J. Am. Vet. Med. Assoc. 175:705-708.
13) Kettmann R, Burny A, Callebaut I, Droogmans L, Mammerickx M, Willems L and Portetelle D. 1994. Bovine leukemia virus. In: Levy J. [ed] The Retroviridae Vol. 3. pp.39-81, Plenum Press. NewYork.
14) Hopkins SG and DiGiacomo RF. 1997. Natural transmission of bovine leukemia virus in dairy and beef cattle. Vet. Clin. North. Am. Food. Anim. Pract. 13:107-128.
15) van der Maaten MJ, Miller JM and Schmerr MJ. 1981. In utero transmission of bovine leukemia virus. Am. J. Vet. Res. 42:1052-1054.
16) 農林水産省. 2015. 牛白血病に関する衛生対策ガイドライン [Online] https://www.maff.go.jp/j/syouan/douei/pdf/ebl_guide.pdf.
17) Leisering A. 1871. Hypertrophy der Malpighischen Körperoen der Milz. Berl. Vet. West. Kgr. Sachsen 16:15-16.
18) Bollinger, O (1874) Über Leukämie bei den Haustieren. Virchows Arch. 59:341-349.
19) Siedamgrotzky O, Hofmeister V (1876) Anleitung zur mikroskopischen und chemischen Diagnostik der Krankheiten der Hausthiere : für Thierärzte und Landwirthe. Schönfeld 192.
20) EFSA Panel on Animal Health and Welfare. 2015. Scientific opinion on enzootic bovine leukosis. EFSA J. [Online] 10.2903/j.efsa.2015.4188.
21) Marawan MA, Alouffi A, Tokhy S EI, Badawy S, Shirani I, Dawood A, Guo A, Almutairi MM, Alshammari FA and Selim A. 2021. Bovine Leukemia Virus: Current Epidemiological Circumstance and Future Prospective. Viruses. 13:2167.
22) Polat M, Takeshima S and Aida Y. 2017. Epidemiology and genetic diversity of bovine leukosis virus. Virol. J. 14:209.
23) 窪田五郎.1927.淋巴肉腫の一例.40:375-378,中央獣医誌.
24) 吉川堯ら.1971.牛白血病の十和田地方における集中発生.第72回日本獣医学会記事.
25) 岩間公男ら.1983.と畜検査からみた家畜腫瘍の検出状況について.11:21-28.獣医科学と統計利用.
26) 森泰良ら.1976.大分県における牛白血病の発生/73:27-36.農林水産省家畜衛生試験場研究報告.
27) Ito T. 1987. Statistics on regional prevalence of gp antibody against bovine leukosis virus in Japan. Bull. Natl. Inst. Anim. Health 90:35-60.
28) Murakami K, Kobayashi S, Konishi M, Kameyama K, Tsutui T. 2013. Nationwide survey of bovine leukemia virus infection among dairy and beef breeding cattle in Japan from 2010-2011. J. Vet. Med. Sci. 75:1123- 1126.
29) Polat M, Takeshima SN, Hosomichi K, Kim J, Miyasaka T, Yamada K, Arainga M, Murakami T, Matsumoto Y, de la Barra Diaz V, Panei CJ, Gonzalez ET, Kanemaki M, Onuma M, Giovambattista G and Aida Y. 2016. A new genotype of bovine leukemia virus in South America identified by NGS-based whole genome sequencing and molecular evolutionary genetic analysis. Retrovirology. 13:4.
30) Lee E, Kim EJ, Ratthanophart J, Vitoonpong R, Kim BH, Cho IS, Song JS, Lee KK and Shin YK. 2016. Molecular epidemiological and serological studies of bovine leukemia virus (BLV) infection in Thailand cattle. Infect. Genet. Evol. 41:245-254.
31) Aiewsakun P, Pamornchainavakul N and Inchaisri C. 2020. Early origin and global colonization of foot-and-mouth disease virus. Sci. Rep. 10:15268.
32) Rios L, Coronado L, Naranjo-Feliciao, Martinez-Perez O, Perera CL, Hernandez-Alvarez L, de Arce HD, Nunez JI, Ganges L and Perez LJ. 2017. Deciphering the emergence, genetic diversity and evolution of classical swine fever virus. Sci. Rep. 7:17887.
33) Kwon T, Yoon SH, Kim KW, Caetano-Anolles K, Cho S and Kim H. 2015. Time-Calibrated Phylogenomics of the Classical Swine Fever Viruses: Genome-Wide Bayesian Coalescent Approach. PLOS ONE. 10(3):e0121578.
34) Kilpatrick AM, Chmura AA, Gibbons DW, Fleischer RC, Marra PP and Daszak P. 2006. Predicting the global spread of H5N1 avian influenza. PNAS. 103:19368-19373.
35) Lee DH, Bertran K, Kwon JH and Swayne DE. 2017. Evolution, global spread, and pathogenicity of highly pathogenic avian influenza H5Nx clade 2.3.4.4. J. Vet. 18:269-280.
36) Lycett SJ, Duchatel F, Digard P. 2019. A brief history of bird flu. Phil. Trans. R. Soc. B 374: 20180257.
37) Alkhamis MA, Aguilar-Vega C, Fountain-Jones NMLin K, Perez AM and Sanchez-Vizcaino JM. 2020. Global emergence and evolutionary dynamics of bluetongue virus. Sci. Rep. 10:21677.
38) Korber B, Muldoon M, Theiler J, Gao F, Lapedes A, Hahn BH, Wolinsky S and Bhattachaya T. 2000. Timing the ancestor of the HIV-1 pandemic strain. Science. 288:1789-1796.
39) Worobey M, Gemmel M, Teuwen DE, Haselkorn T, Kunstman K, Bunce M, Muyembe JJ, Kabonbo JMM, Kalengayi RM, Marck EV, Gilbert MTP and Wolinsky SM. 2008. Direct evidence of extendive diversity of HIV-1 in Kinshasa by 1960. Nature. 455:661-664.
40) Worobey M, Watts TD, McKay RA, Suchard MA, Granade T, Teuwen DE, Koblin BA, Heneine W, Lemey P and Jaffe H. 2016. 1970s and ‘Patient 0’ HIV-1 genomes illuminate early HIV/AIDS history in North America. Nature. 539:98-101.
41) Lemey P, Pybus OG, Wang B, Saksena NK, Salemi M and Vandamme AM. 2003. Tracing the origin and history of the HIV-2 epidemic. PNAS. 100:6588-6592.
42) Bahl J, Krauss S, Kuhnert D, Fourment M, Raven G, Pryor SP, Niles LJ, Danner A, Walker D, Mendenhall IH, Su YC, Dugan VG, Halpin RA, Stockwell TB, Webby RJ, Wentworth DE, Drummond AJ, Smith GJ and Wabster RG. 2013. Influenza A virus migration and persistence in North American wild birds. PLOS pathog. 9:e1003570.
43) Holmes EC, Dudas G, Rambaut A and Andersen KG. 2016. The Evolution of Ebola virus: Insights from the 2013-2016 Epidemic. Nature. 538:193- 200.
44) Chao DL, Halloran ME and Longini Jr. IM. 2010. School opening dates predict pandemic influenza A (H1N1) epidemics in the USA. J. Infect. Dis. 202:877-880.
45) Brenner B, Wainberg MA and Roger M. 2013. Phylogenetic inferences on HIV-1 transmission: implications for the design of prevention and treatment interventions. AIDS. 27:1045-1057.
46) Hayati M, Biller Priscila and Colijn C. 2020. Predicting the short-term success of human influenza virus variants with machine learning. Proc. R. Soc. 287:20200319.
47) Weber MN, Wolf JM, da Silva MS, Mosena ACS, Budaszewski RF, Lunge VR and Canal CW. 2021. Insight into the origin and diversification of bovine viral diarrhea virus 1 subtypes. Arch. Virol. 166:607-611.
48) Molaee V, Bazzucchi M, De Mia GM, Otarod V, Adbollahi D, Rosati S and Luhken G. 2020. Phylogenetic analysis of small ruminant lentiviruses in Germany and Iran suggests their expansion with domestic sheep. Sci. Rep. 10:2243.
49) 椎野禎一郎、杉浦亙.2014.大規模ウイルス遺伝子配列解析からみた本邦のHIV-1流行動態.J.AIDSRes.16:137-142.
50) 三浦定夫.1978.牛の白血病.Ⅰ一般概念:3-9.三浦定夫教授定年退官記念事業会.
51) 家畜衛生30年の歩み.1980.第1章:139-145.岩手県家畜保健衛生30周年記念事業実行委員会.
52) Kumar S, Stecher G and Tamura K. 2016. MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. Mol. Biol. Evol. 33:1870-1874.
53) Rambaut A, Lam TT, Max Carvalho L and Pybus OG. 2016. Exploring the temporal structure of heterochronous sequences using TempEst (formerly Path-O-Gen). Virus Evol. 2:vew007.
54) Bouckaert R, Heled J, Kühnert D, Vaughan T, Wu CH, Xie D, Suchard MA, Rambaut A and Drummond AJ. 2014. BEAST 2: a software platform for Bayesian evolutionary analysis. PLOS Comput. Biol. 10:e1003537.
55) Rambaut A and Drummond A. 2009. Tracer v1.5. [online] available at http://beast.bio.ed.ac.uk/Tracer.
56) Rambaut A and Drummond A. 2016. TreeAnnotator version 1.8.0. [online] available at http://beast.bio.ed.ac.uk.
57) Rambaut A. 2019. Molecular evolution, phylogenetics and epidemiology: Figtree v1.4.4.[online] available at http://beast.bio.ed.ac.uk/software/figtree/.
58) Dedhia P, Tarale S, Dhongde G, Khadapkar R and Das B. 2007. Evaluation of DNA extraction methods and real time PCR optimization on formalin-fixed paraffin-embedded tissues. Asian Pac. J. Cancer Prev. 8:55- 59.
59) Dietrich D, Uhl B, Sailer V, Holmes EE, Jung M, Meller S and Kristiansen G. 2013. Improved PCR performance using template DNA from formalin- fixed and paraffin-embedded tissues by overcoming PCR inhibition. PLoS One 8:e77771.
60) Feldman MY. 1973. Reactions of nucleic acids and nucleoproteins with formaldehyde. Prog. Nucleic Acid Res. Mol. Biol. 13:1-49.
61) Bolognesi C, Forcato C, Buson G, Fontana F, Mangano C, Doffini A, Sero V, Lanzellotto R, Signorini G, Calanca A, Sergio M, Romano R, Gianni S, Medoro G, Giorgini G, Morreau H, Barberis M, Corver WE and Manaresi N. 2016. Digital sorting of pure cell populations enables unambiguous genetic analysis of heterogeneous formalin-fixed paraffin-embedded tumors by next generation sequencing. Sci. Rep. 6:20944.
62) Kocjan BJ, Hošnjak L and Poljak M. 2015. Commercially available kits for manual and automatic extraction of nucleic acids from formalin-fixed, paraffin-embedded (FFPE) tissues. Acta Dermatovenerol. Alp. Panonica Adriat. 24:47-53.
63) Johnson R and Kaneene JB. 1992. Bovine leukemia virus and enzootic bovine leukosis. Vet. Bull. 62:287-312.
64) Coulston J, Naif H, Brandon R, Kumar S, Khan S, Daniel RC and Lavin MF. 1990. Molecular cloning and sequencing of an Australian isolate of proviral bovine leukaemia virus DNA: comparison with other isolates. J. Gen. Virol. 71:1737-1746.
65) Fechner H, Blankenstein P, Looman AC, Elwert J, Geue L, Albrecht C, Kurg A, Beier D, Marquardt O and Ebner D. 1997. Provirus variants of the bovine leukemia virus and their relation to the serological status of naturally infected cattle. Virology 237:261-269.
66) Kettmann R, Couez D and Burny A. 1981. Restriction endonuclease mapping of linear unintegrated proviral DNA of bovine leukemia virus. J. Virol. 38:27-33.
67) Licursi M, Inoshima Y, Wu D, Yokoyama T, González ET. and Sentsui H. 2002. Genetic heterogeneity among bovine leukemia virus genotypes and its relation to humoral responses in hosts. Virus Res. 86:101-110.
68) Mamoun RZ, Morisson M, Rebeyrotte N, Busetta B, Couez D, Kettmann R, Hospital M and Guillemain B. 1990. Sequence variability of bovine leukemia virus env gene and its relevance to the structure and antigenicity of the glycoproteins. J. Virol. 64:4180-4188.
69) Sahashi Y, Oshima M, Yamagishi J, Muramatsu C, Shimizu K and Inoshima Y. 2021. Bovine leukemia virus genotype surveillance in cattle at a slaughterhouse in Aichi Prefecture, Japan, in 2019 using polymerase chain reaction combined with restriction fragment length polymorphism. J. Vet. Med. Sci. 83:1730-1734
70) Suto A, Iwata R and Park CH. 2012. Genotyping of Bovine Leukemia Virus Circulating in Yamagata Prefecture. J. Jpn. Vet. Med. Assoc. 65:883-887.
71) Fechner H, Blankenstein P, Looman AC, Elwert J, Geue L, Albrecht C, Kurg A, Beier D, Marquardt O and Ebner D. 1997. Provirus variants of the bovine leukemia virus and their relation to the serological status of naturally infected cattle. Virology 237:261-269.
72) Yang Y, Kelly PJ, Bai J, Zhang R and Wang C. 2016. First molecular characterization of bovine leukemia virus infections in the Caribbean. PLoS One 11:e0168379.
73) Nishikaku K, Noguchi T, Murakami S, Torii Y and Kobayashi T. 2022. Molecular analysis of bovine leukemia virus in early epidemic phase in Japan using archived formalin fixed paraffin embedded histopathological specimens. J. Vet. Med. Sci. 84:350-357.
74) Nishikaku K, Ishiukura R, Ohnuki N, Polat M, Aida Y, Murakami S and Kobayashi T. 2019. Broadly applicable PCR restriction fragment length polymorphism method for genotyping bovine leukemia virus. J. Vet. Med. Sci. 81:1157-1161.
75) 西角光平、小林朋子.2020.日本における牛白血病の発生と拡散の歴史.日本獣医史学雑誌.58:12-19.
76) Tamura G. 2004. Pathology and Clinical Medicine. pp. 371–375. vol. 22 an extra ed. Bunkodo. Tokyo.
77) Ohnuki N, Kobayashi T, Matsuo M, Nishikaku K, Kusama K, Torii Y, Inagaki Y, Hori M, Imakawa K and Satou Y. 2021. A target enrichment high throughput sequencing system for characterization of BLV whole genome sequence, integration sites, clonality and host SNP. Sci. Rep. 11:4521.
78) 和牛育種改良の軌跡.1995.農業研究8号.
79) 広瀬可恒.1971.酪農バンドブック.第1版.養賢堂.東京.
80) 明石博臣ら.2004.動物の感染症.第2版.近代出版.東京.