Dogs that run free in remote areas of British Columbia that are without proper veterinary care are transmitting deadly diseases to wolf populations in the area, a new study found. "Some of the diseases we detected, notably parvovirus and distemper, can be lethal and have been linked with population declines in wildlife," said researcher Paul Paquet. The canines are also carriers of several bacterial strains and parasites that can infect the humans they come in contact with, researchers found.

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