Swine flu cases in China rises to 185

China has reported 20 more cases of swine flu, bringing the total on the mainland to 185.

Health Ministry said on its Web site late yesterday that the cities of Beijing and Shanghai have reported more cases, as did provinces in central, eastern and southern China.

The world's most populous country has quarantined travelers including New Orleans Mayor Ray Nagin on the slightest suspicion of contact with an infected person, and has increased surveillance of the virus with temperature checks on incoming passengers at airports. There have been no reports of deaths.

Hong Kong, which tallies swine flu cases separately, said late Saturday it had confirmed 11 more cases, bringing the Chinese territory's total to 84.