Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link

Disclaimer: Early release articles are not considered as final versions. Any changes will be reflected in the online version in the month the article is officially released.

Volume 31, Number 11—November 2025

Dispatch

Novel Dolphin Tupavirus from Stranded Atlantic White-Sided Dolphin with Severe Encephalitis, Canada, 2024

Oksana Vernygora1, Laura Bourque1, Megan Jones, Ole Nielsen, Carissa Embury-Hyatt, Estella Moffat, Tonya Wimmer, and Oliver LungComments to Author 
Author affiliation: National Centre for Foreign Animal Disease, Winnipeg, Manitoba, Canada (O. Vernygora, C. Embury-Hyatt, E. Moffat, O. Lung); Canadian Wildlife Health Cooperative, Atlantic Region, Charlottetown, Prince Edward Island, Canada (L. Bourque, M. Jones); Department of Fisheries and Oceans Canada, Winnipeg (O. Nielsen); Marine Animal Response Society, Halifax, Nova Scotia, Canada (T. Wimmer); University of Manitoba, Winnipeg (O. Lung)

Main Article

Table

Characteristics of highly divergent novel dolphin tupavirus protein sequences from the brain of a stranded dead Atlantic white-sided dolphin with severe encephalitis, Canada*


Nucleotide
Amino acid
Protein Top match by BLASTn % Identity Top match by DELTA-BLAST % Identity
Nucleocapsid Wufeng Rhinolophus pearsonii tupavirus 1 (GenBank accession no. MZ328291.1) 68.54 Wufeng bat tupavirus 2 (GenBank accession no. WPV62772.1) 54.88
Phosphoprotein NA NA Wufeng Rhinolophus pearsonii tupavirus 1 (GenBank accession no. UBB42388.1) 17.55
Matrix protein NA NA Bat tupavirus CX1 (GenBank accession no. WGC86350.1) 32.68
SH protein NA NA Durham virus (GenBank accession no. ADB88762) 33.33
Glycoprotein NA NA Wufeng bat tupavirus 2 (GenBank accession no. WPV62776.1) 30.62
Polymerase Wenzhou Myotis laniger tupavirus 1 (GenBank accession no. OM030290.1) 55.42 Klamath virus (GenBank accession no. AJR28401.1) 55.36

*Percentage amino acid identity for the SH protein was calculated by aligning it to the SH from Durham virus, the closest tupavirus to DTV, using a BLASTp algorithm (https://blast.ncbi.nlm.nih.gov/Blast.cgi). SH proteins have very low identity among the members of the genus (7,8). NA, not applicable; SH, small hydrophobic protein.

Main Article

References
  1. Bossart  GD. Marine mammals as sentinel species for oceans and human health. Vet Pathol. 2011;48:67690. DOIPubMedGoogle Scholar
  2. Walker  PJ, Bigarré  L, Kurath  G, Dacheux  L, Pallandre  L. Revised taxonomy of rhabdoviruses infecting fish and marine mammals. Animals (Basel). 2022;12:1363. DOIPubMedGoogle Scholar
  3. Osterhaus  ADME, Broeders  HWJ, Teppema  JS, Kuiken  T, House  JA, Vos  HW, et al. Isolation of a virus with rhabdovirus morphology from a white-beaked dolphin (Lagenorhynchus albirostris). Arch Virol. 1993;133:18993. DOIPubMedGoogle Scholar
  4. Siegers  JY, van de Bildt  MWG, van Elk  CE, Schürch  AC, Tordo  N, Kuiken  T, et al. Genetic relatedness of dolphin rhabdovirus with fish rhabdoviruses. Emerg Infect Dis. 2014;20:10812. DOIPubMedGoogle Scholar
  5. Emelianchik  A, Rodrigues  TCS, Subramaniam  K, Nielsen  O, Burek-Huntington  KA, Rotstein  D, et al. Characterization of a novel rhabdovirus isolated from a stranded harbour porpoise (Phocoena phocoena). Virus Res. 2019;273:197742. DOIPubMedGoogle Scholar
  6. Geraci  JR, Lounsbury  VJ. Marine mammals ashore: a field guide for strandings. College Station (TX): Texas A&M University, Sea Grant College Program; 1993.
  7. Vernygora  O, Sullivan  D, Nielsen  O, Huntington  KB, Rouse  N, Popov  VL, et al. Senecavirus cetus a novel picornavirus isolated from cetaceans represents a major host switching to the marine environment. Npj Viruses. 2024;2:33. DOIGoogle Scholar
  8. Allison  AB, Palacios  G, Travassos da Rosa  A, Popov  VL, Lu  L, Xiao  SY, et al. Characterization of Durham virus, a novel rhabdovirus that encodes both a C and SH protein. Virus Res. 2011;155:11222. DOIPubMedGoogle Scholar
  9. Walker  PJ, Firth  C, Widen  SG, Blasdell  KR, Guzman  H, Wood  TG, et al. Evolution of genome size and complexity in the rhabdoviridae. PLoS Pathog. 2015;11:e1004664. DOIPubMedGoogle Scholar
  10. Walker  PJ, Freitas-Astúa  J, Bejerman  N, Blasdell  KR, Breyta  R, Dietzgen  RG, et al.; Ictv Report Consortium. ICTV virus taxonomy profile: Rhabdoviridae 2022. J Gen Virol. 2022;103:001689. DOIPubMedGoogle Scholar
  11. Kuzmin  IV, Wu  X, Tordo  N, Rupprecht  CE. Complete genomes of Aravan, Khujand, Irkut and West Caucasian bat viruses, with special attention to the polymerase gene and non-coding regions. Virus Res. 2008;136:8190. DOIPubMedGoogle Scholar
  12. Gulland  FMD, Dierauf  LA, Whitman  KL, editors. CRC handbook of marine mammal medicine. 3rd edition. Boca Raton (FL): CRC Press; 2018.
  13. Maxie  M. Jubb, Kennedy, and Palmer’s pathology of domestic animals. 6th edition. St. Louis (MO): Elsevier; 2016.
  14. Winkler  MP, Parker  S. Rabies in seals: visitors to Cape Town marine areas urged to be alert. J Travel Med. 2024;31:taae106. DOIGoogle Scholar
  15. Odegaard  OA, Krogsrud  J. Rabies in Svalbard: infection diagnosed in arctic fox, reindeer and seal. Vet Rec. 1981;109:1412. DOIPubMedGoogle Scholar

Main Article

1These authors contributed equally to this article.

Page created: September 30, 2025
Page updated: November 20, 2025
Page reviewed: November 20, 2025
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external