
WASHINGTON (Reuters) – A government official confirmed the first U.S. death from the new H1N1 swine flu on Wednesday, a 23-month-old child who died in Texas.There have now been 66 cases of the disease reported in the US, while in Mexico, the death toll from swine flu has reached 159.
Kathy Barton, a spokeswoman for the Houston Health and Human Services Department, said Wednesday that the child had traveled with family from Mexico to Brownsville in South Texas. The child became ill in Brownsville and was taken to a Houston hospital and died Monday night, she said.The LA Times, meanwhile, is reporting that swine flu has been effectively ruled out in 2 earlier deaths that were initially suspected to be related to the outbreak.
"Even though we've been expecting this, it is very, very sad," Dr. Richard Besser, acting chief of the Centers for Disease Control and Prevention, said Wednesday of the infant's death. "As a pediatrician and a parent, my heart goes out to the family."
Phase 4 is characterized by verified human-to-human transmission of an animal or human-animal influenza reassortant virus able to cause "community-level outbreaks." The ability to cause sustained disease outbreaks in a community marks a significant upwards shift in the risk for a pandemic. Any country that suspects or has verified such an event should urgently consult with WHO so that the situation can be jointly assessed and a decision made by the affected country if implementation of a rapid pandemic containment operation is warranted. Phase 4 indicates a significant increase in risk of a pandemic but does not necessarily mean that a pandemic is a forgone conclusion.
Phase 5 is characterized by human-to-human spread of the virus into at least two countries in one WHO region. While most countries will not be affected at this stage, the declaration of Phase 5 is a strong signal that a pandemic is imminent and that the time to finalize the organization, communication, and implementation of the planned mitigation measures is short.
Phase 6, the pandemic phase, is characterized by community level outbreaks in at least one other country in a different WHO region in addition to the criteria defined in Phase 5. Designation of this phase will indicate that a global pandemic is under way.
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