Emerging epidemic diseases of frogs in Britain are dependent on the source of ranavirus agent and the route of exposure.

@article{Cunningham2007EmergingED,
  title={Emerging epidemic diseases of frogs in Britain are dependent on the source of ranavirus agent and the route of exposure.},
  author={Andrew A Cunningham and Alex. D. Hyatt and Periann Russell and Peter M. Bennett},
  journal={Epidemiology and infection},
  year={2007},
  volume={135 7},
  pages={1200-12}
}
A series of transmission studies was conducted to investigate the aetiology, or aetiologies, of emerging fatal epidemic disease syndromes affecting the common frog (Rana temporaria) in Britain. The syndromes, characterized by skin ulceration or systemic haemorrhages, were induced upon exposure to lesion homogenates or cultured ranavirus. The re-isolation of ranavirus from experimentally affected frogs fulfilled Koch's postulates. Aeromonas hydrophila, previously associated with similar lesions… CONTINUE READING