"When a disease swept through southern China last year, killing off nearly 25,000 piglets over a period of months, scientists initially thought a diarrheal virus was to blame. They later determined it was something else: a dangerous coronavirus, the same family of viruses that 15 years ago caused a human epidemic of SARS, or severe acute respiratory syndrome."
https://www.statnews.com/2018/04/04/sars-outbreak-pigs-humans-coronavirus/