WHO has confirmed 985 cases of H1N1 virus worldwide . Mexico says illness declining there ; WHO warns it could return . Score: In China , officials have quarantined 68 people , including 13 crew members , who were passengers of a Mexico City to Shanghai flight , which carried a passenger who tested positive for the virus , China 's state-run Xinhua news agency reported Sunday . 6 Canadian officials claim pigs at farm have been affected by virus .
WHO has confirmed 985 cases of H1N1 virus worldwide . Mexico says illness declining there ; WHO warns it could return . Score: 6 Canadian officials claim pigs at farm have been affected by virus .