In the winter of 1991/92 there was an outbreak of parapox infection in
grey seals (Halichoerus grypus) around the coast of Cornwall. Pups we
re cared for at a seal rehabilitation centre and the infection occurre
d in most of them. The presence of parapox virus was confirmed by elec
tron microscopy. The clinical and pathological findings, together with
details of the morphology of the virus, are compared with those in pr
evious outbreaks in North America.