Child level

Same level

Genera

Duck hepatitis virus 2 (DHV-2)  and DHV-3 are two of three small RNA viruses causing duck virus hepatitis, the other one being DHV-1.

DHV-2 was reclassified as an astrovirus and renamed duck astrovirus 1 (DAstV-1) many years ago (Gough et al., 1984, 1985). DHV-3 was first characterised by Haider and Calnek (1979).

Recent partial polymerase sequences of DHV-2 (DAstV-1) and DHV-3 have been determined show that they are both astroviruses and that DHV-3 is distinct from DAstV-1 (Todd et al., 2009).

References

Gough, R.E., Collins, M.S., Borland, E. and Keymer, L.F. (1984). Astrovirus-like particles associated with hepatitis in ducklings. Vet Rec. 114: 279.

Gough, R.E., Borland, E.D., Keymer, I.F. and Stuart, J.C. (1985). An outbreak of duck hepatitis type II in commercial ducks. Avian Pathology 14: 227-236.

Haider, S.A, and Calnek, B.W. (1979). In vitro isolation, propagation, and characterization of duck hepatitis virus type III. Avian Dis. 23: 715-729.

Todd, D., Smyth, V.J., Ball, N.W., Donnelly, B.M., Wylie, M., Knowles, N.J. and Adair, B.M. (2009). Identification of chicken enterovirus-like viruses, duck hepatitis virus (DHV) type 2 and DHV type 3 as astroviruses. Avian Pathology 38: 21-29.