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A deadly virus is spreading in marine mammals. Scientists say climate change is to blame.

Breaking News EmailsGet breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings.SUBSCRIBENov. 7, 2019, 7:12 PM UTCBy Denise ChowWhen a deadly virus that killed tens of thousands of European harbor seals in the northern Atlantic Ocean in 2002 began threatening sea lions, seals and otters in the northern Pacific Ocean, scientists were initially puzzled.The highly contagious phocine distemper virus — which is not believed to affect humans — attacks the respiratory and nervous systems of some marine mammals. But there was no indication it had infected animals that could have taken it to different parts of the world.“How did a virus that had previously been seen in the Atlantic Ocean end up in ...