Oct 15, 6:07 PM EDT
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Rare Tropical Fungus Spreads to Washington State*

BELLINGHAM, Wash. (AP) -- A rare tropical fungus that has infected more
than 100 people since it appeared in British Columbia six years ago has
crossed the border into Whatcom County, health officials say.

Cryptococcus gattii, invisible to the naked eye and found mostly in
trees and soil, has infected at least four residents this year, two of
them fatally, county health officer Greg Stern said.

Considering how many are exposed to the fungus annually, often in the
woods and other outdoor areas, infection remains relatively rare, he and
other medical experts said.

"I'm concerned about the emergence of a new disease, but it still is
relatively rare and that part is reassuring," Stern said. "Even on
Vancouver Island and the B.C. mainland, where the assumption would be
fairly significant exposure to the spores, very few people get sick."

On the other hand, scientists haven't found a way to reduce the risk of
getting the disease, he noted.

Cryptococcus gattii is sometimes resistant to medication that is used to
treat a more common, related fungus, Cryptococcus neoformans, which
typically infects people whose immune systems are impaired.

Courtney Blomeen, 16, of Blaine, the county's fourth known case this
year, first thought she had a severely strained shoulder muscle and a
chest cold last month, but a computer imaging scan revealed otherwise.

"I couldn't breathe, it scared me so much," her father, Greg Blomeen,
told The Bellingham Herald. "Her left lung had completely blocked off.
There were marble-sized nodules that were showing bright white. It was
so bad that the one lung was at collapse."

The next day the teenager and her parents had to stay in a special room
at Children's Hospital in Seattle until doctors confirmed that the lung
problem was not contagious.

Back at her mother's house in Blaine, she still finds breathing
difficult at times and expects to be on anti-fungal medication for about
a year but is glad to be getting better.

"There's not much air space in there," she said. "Other than that, it's
not that bad. I can walk now."

When Cryptococcus gattii infections usually begin in the lungs but can
also spread to the brain and develop into deadly meningitis.

The fungus was believed to be largely confined to the tropics until
2001, when it was first diagnosed on Vancouver Island. Since then it has
been found in dogs, cats, horses and porpoises, as well as humans, and
has been blamed for the death of eight people in British Columbia.

Spores of the fungus have been found on trees and in soil, air and water
throughout eastern Vancouver Island, mainland areas around Vancouver and
more recently on a fence post just south of the border, health officials
said.

No parks or other areas in British Columbia have been closed to the
public because of the fungus.

"I certainly don't recommend people stop going outdoors or avoid being
near trees," Stern said. "That's not likely to make a difference."

Out of about a million people who are exposed to the fungus annually in
the province, 20 to 30 become seriously ill and a total of about eight
have died, British Columbia health officials say.

Most British Columbia residents who contracted the illness had healthy
immune systems, but 45 percent - like the Blaine teenager - were
smokers, and 73 percent had smoked at one time.

Other ailments also may be a factor, Stern said, noting that one of
those who died of the fungus in Whatcom County had a compromised immune
system from other factors.

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On the Web:

British Columbia Cryptococcal Working Group:
http://www.cher.ubc.ca/cryptococcus

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Information from: The Bellingham Herald, http://www.bellinghamherald.com