A Mexican child has died of swine flu in the United States after becoming ill while visiting relatives in Texas.
The death occured in Texas, and is the first from the flu outside Mexico. He was 22 months old.
US officials said the boy arrived in the border city of Brownsville in Texas with "underlying health issues" on 4 April and developed flu symptoms four days later.
He was later transferred to a hospital in Houston, where he died on Monday night.
The Centers for Disease Control and Prevention says there are 91 confirmed cases in the United States.
The number of deaths in Mexico suspected of being due to swine flu is now 159. Seven cases have been confirmed.
The World Health Organization says the number of affected countries is now nine. Germany and Austria are the latest to report cases.
Others are Britain, Canada, Israel, New Zealand, Spain and the US.
Term "misleading" - FAO
The Food & Agriculture Organization says the term swine flu could be misleading.
A team from the United Nations agency is being sent to Mexico to establish if any link exists between pigs and the outbreak.
Senior Officer Jan Selingenbergh told Morning Report there is no evidence to suggest any pig has ever carried the new strain of virus.
He said North American Flu or H1N1 virus are more appropriate terms for the virus.