Via CBC News: B.C. teen with avian flu is in critical condition, provincial health officer says. Excerpt:
The teenager who tested positive for avian flu is in critical condition and being treated for acute respiratory distress at B.C. Children's Hospital, Provincial Health Officer Dr. Bonnie Henry says.
Henry says the teen, the first presumptive human case of avian flu contracted in Canada, was admitted to hospital late Friday.
Their condition "varied" over the weekend, Henry said, adding "our thoughts continue to be with this person and their family."
Henry said work underway to confirm the diagnosis and trace potential sources of exposure through the B.C. Centre for Disease Control had given her "confidence" that the teen has H5 avian influenza, also known as bird flu.
She says it's likely that the teenager contracted the illness from exposure to an animal or the environment, although there's a "very real possibility" that the source will never be found.
Henry said privacy considerations restrict what can be said publicly about the teen, but said he or she did not have any underlying medical conditions.
The teen first went to the emergency department on Nov. 2 and was tested and sent home, but returned to hospital days later when symptoms worsened.
Henry said contact tracing has been conducted on 35 to 40 of the teen's family members, friends and acquaintances.
"We have not identified anyone else that is sick with the virus in B.C. right now," she said. "We don't see right now that there's a risk of a lot of people getting sick."
She said the teen was not in school during the infectious period of the disease, which roughly began on Oct. 31, two days before the onset of symptoms.
She said the teen has no links to people who had recently travelled to Southeast Asia, which has seen outbreaks.
According to Henry, the teen did not have any contact with birds but did interact with a variety of other animals — including a dog, cats and reptiles — in the days before becoming ill. Henry said testing on those animals has so far been negative for the virus.
She said no links have been found between the teen and local farms — including the two dozen B.C. poultry farms that have suffered avian flu outbreaks during the fall migration of wild birds. No links have been found to outbreaks taking place across the border in Washington state, she added.
Henry said the case is still being called a "presumptive positive" because it has to be confirmed at the National Microbiology Laboratory in Winnipeg, which could happen later on Tuesday.
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