Experts say the rare Shiga toxigenic (STEC) variant of the diarrhoea-causing bug is ‘particularly nasty’ and issued a warning to handle and cook food hygienically.Experts say the rare Shiga toxigenic (STEC) variant of the diarrhoea-causing bug is ‘particularly nasty’ and issued a warning to handle and cook food hygienically.Read MoreHealth News | Mail Online