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| Staff members check the temperature of a passenger at Hong Kong Inter- national Airport in Hong Kong, south China, April 27, 2009. Hong Kong Special Administrative Region has taken measures to contain the possible spread of swine flu.(Xinhua Photo) |
The government upgraded the alert level to "serious" on April 26 and demanded possible swine flu cases to be reported to authorities.
The swine flu, which is believed to be a new strain, has killed more than 80 people and sickened thousands across Mexico. Cases were also found in Canada and the U.S.
