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Geographical distribution of the Porcine Epidemic Diarrhoea outbreaks. Farms that tested positive were located mainly in the Po Valley, with only a few in the rest of Italy. Finisher, red diamond; wean‐to‐finish, blue circle; farrow‐to‐wean, grey cross; farrow‐to‐finish, orange square; family holding, green circle; and unknown, black triangle
