How do climate change, migration and a deadly disease in sheep alter our understanding of pandemics?

September 3, 2020 – By Carson Vaughan, Ensia – For thousands of years, an unknown virus lingered quietly among the wild ruminants of South Africa. The kudu. The giraffes. The Cape buffalo. Spread by a genus of biting midges called Culicoides, the virus lived in harmony with its hosts, rarely causing disease, until the late 18th century, when farmers began importing purebred merino sheep from Europe.

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