coronavirus pandemic may have originated in a pig's head, authorities investigating the original Wuhan outbreak say.Beijing has suspended imports of frozen food products after evidence suggested the original Sars-CoV-2 virus may have arrived at the Huanan Seafood Wholesale Market this way.Chinese health authorities have repeatedly reported finding the Covid-19 virus on frozen food including pig heads and seafood, both products likely to have been sold at Huanan Market.The "cold-chain transmission" theory was discussed prominently at a press conference in Wuhan on Tuesday, where an international team of scientists from the World Health Organisation (WHO) presented the findings of their month-long probe. "Sars-CoV-2 can persist in conditions.