
Chinese scientists have warned that pigs are a 'key intermediate host' or 'mixing vessel' for viruses spreading from wild animals into humans and could cause another pandemic if not taken seriously. Experts from the Chinese Academy of Sciences have been studying outbreaks of swine flu in pig farms across the country and say the latest strain can pass to humans even though only two people are confirmed to have caught the virus, dubbed G4 EA H1N1, since the first outbreak in 2016



