Mexico has listed China, Armenia, Bahrain, Gabon, Indonesia, Jordan and Surinam as countries that have restricted its pork imports over concerns about H1N1 flu, in spite of statements from the UN and scientists that pork posed no H1N1 risks, according to a report.

China defended barring pork imports on the basis of a huge population that was more vulnerable owing to the bulk of pork in its diet.

The U.S., Canada, Japan, New Zealand, Brazil and others stressed that trade restrictions in response to the flu "have no scientific justification."