Sardinia's sheep farmers battle bluetongue as climate warms

The sheep huddle together, bleeding from the nose, aborting lambs or suffocating on saliva as they succumb to bluetongue, a virus sweeping through flocks on the Italian island of Sardinia.

Some 20,000 sheep have died so far this year on the island, which is home to nearly half Italy’s flock and plays an important role in the production of famed Italian cheeses such as Pecorino.

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