Emerging Infectious Disease ISSN: 1080-6059

Cygnet River Virus, a Novel Orthomyxovirus from Ducks, Australia

Allan Kessell¹, Alex Hyatt, Debra Lehmann, Songhua Shan, Sandra Crameri, Clare Holmes, Glenn Marsh, Catherine Williams, Mary Tachedjian, Meng Yu, John Bingham, Jean Payne, Sue Lowther, Jianning Wang, Lin-Fa Wang, and Ina Smith

Author affiliations: Author affiliations: Gribbles Pathology, Glenside, South Australia, Australia (A. Kessell); Commonwealth Scientific and Industrial Research Organization, Geelong, Victoria, Australia (A. Hyatt, S. Shan, S. Crameri, C. Holmes, G. Marsh, C. Williams, M. Tachedjian, M. Yu, J. Bingham, J. Payne, S. Lowther, J. Wang, L.-F. Wang, I. Smith); Kangaroo Island Veterinary Clinic, Kangaroo Island, South Australia, Australia (D. Lehmann)

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Figure 1

A) Transmission electron micrograph of an ultrathin section of Vero cells infected with Cygnet River virus (CyRV) from a Muscovy duck, Australia. Arrow, virus budding from the plasma membrane; arrowhead, sand-like structures. *Host cell projection. Scale bar = 200 nm. B and C) Transmission electron micrographs of CyRV prepared by negative-contrast electron microscopy. Scale bars = 100 nm. Preparations were derived from supernatant of CyRV-infected Vero cells (B) and from allantoic fluid of CyRV-

Figure 1. . A) Transmission electron micrograph of an ultrathin section of Vero cells infected with Cygnet River virus (CyRV) from a Muscovy duck, Australia. Arrow, virus budding from the plasma membrane; arrowhead, sand-like structures. *Host cell projection. Scale bar = 200 nm. B, C) Transmission electron micrographs of CyRV prepared by negative-contrast electron microscopy. Scale bars = 100 nm. Preparations were derived from supernatant of CyRV-infected Vero cells (B) and from allantoic fluid of CyRV-infected eggs (C).

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¹Current affiliation: Charles Sturt University, Wagga Wagga, New South Wales, Australia.

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