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25 Apr 2009 07:23
Mexican and US health officials searched on Saturday for signs an outbreak of a new flu strain is spreading further, after it killed up to 68 people in Mexico and infected eight in the United States.
As Mexico shut schools and museums and axed public events, global health officials stopped short of declaring a pandemic.
But they warned more cases could come to light, making up a major outbreak, as the flu spreads between people and infected some individuals who had no contact with one another.
The World Health Organisation said the virus from 12 of the Mexican patients was the same genetically as a new strain of swine flu, designated H1N1, seen in eight people in California and Texas who later recovered.
The Mexican government said the flu had killed 20 people and it may also be responsible for 48 other deaths. In all, 1 004 suspected cases have been reported nationwide.
Health Minister Jose Angel Cordova, speaking on the evening television news, encouraged people to avoid crowds and wear face masks, noting there was no guarantee that going to get a flu vaccine would help against the new strain.
He said the death rate appeared to have steadied and hospitals in the past few days had not seen the exponential rise in the number of people infected that many had feared.
Genetic analysis shows the flu strain is a never-before-seen mixture of swine, human and avian viruses.
The fact most of the dead were aged between 25 and 45 was seen as a worrying sign linked to pandemics, as seasonal flu tends to be more deadly among the elderly and the very young.
“We realise the seriousness of this problem,” Mexican President Felipe Calderon told health officials on Friday.
More cases could emerge
In California, Dr Gil Chavez, director of the Centre for Infectious Diseases at the California Department of Public Health and the state’s chief epidemiologist, said many more cases could come to light as patients are tested.
“The more we look the more we are likely to find,” he said.
The US government said it was taking the situation seriously and monitoring for any new developments.
As far away as Hong Kong—the epicentre of the 2003 Sars epidemic and especially vigilant to any threat of infectious disease—the government’s Centre for Health Protection said it was closely monitoring investigations in the United States and would analyse flu samples in the territory.
Cordova said Mexico had one million doses of antiviral medicine, easily enough to treat the cases reported so far.
In Mexico City, a crowded metropolis of 20-million people, soldiers handed out surgical masks and the government warned people to avoid close physical contact and sharing food.
Finnish rock band The Rasmus cancelled a Mexico City concert and the Mexican Football Federation said two weekend soccer matches would be played with no spectators present as a precaution.
DVD rental stores said customers poured in to rent movies on Friday night so they could huddle inside for the weekend.
The last flu pandemic was in 1968 when “Hong Kong” flu killed about a million people globally.
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