China has quarantined more than 70 Mexican travellers as a precautionary measure, despite no new swine flu outbreaks being detected in Asia.
In Beijing, Mexicans are being asked to identify themselves on arriving flights and isolated from other travellers after landing.
But none have presented symptoms or had any contact with infected people.
Mexico’s ambassador to China claims that officials have been unable to give clear answers about the criteria for quarantining Mexicans and have not provided proper consular notification and access.
But Shanghai officials say the harsh measures are warranted and legal under Chinese law.