A pleural effusion is an abnormal amount of fluid around the lung. Pleural effusions can result from many medical conditions. Most pleural effusions are not serious by themselves, but some require treatment to avoid problems.
And like a sleeping dragon, it's now nowhere to be found.
Unless, of course, it wakes again. Will it? If anyone would know, that person
would be Jeffrey Koplan, MD, MPH, former CDC director and longtime CDC disease
detective, now vice president for academic health affairs at Emory University
"Unknown," Koplan tells WebMD. "SARS can not come
back; it can come back. Anyone who gives a firm statement of, 'This is what
will happen with SARS,' I don't know where they are getting their
What is known, Koplan says, is that there's more than one
"The best-case scenario is we learn from SARS and prepare
for what is going to be an inevitable return of this virus or something like it
-- or something worse," Koplan says. "The worst case is we say, 'This
isn't coming back,' or say, 'Other things are more urgent.' In that case, we
are no better off than before. Right now, we are closer to nowhere."
This is the story of SARS -- so far. It's about what happened.
It's about what we know and what we don't know. And it's about what, at our
peril, we refuse to learn.
The ancient city of Foshan sits in the Pearl River delta of
southeast China. Foshan is home to some 320,000 people. It's an industrial
city, but its exquisite silks and porcelains -- and its famous Cantonese
cooking -- make it a popular tourist destination.
In November 2002, people in Foshan began coming down with an
unusually severe pneumonia. By January 2003, this pneumonia had spread to the
nearby -- and larger -- city of Guangzhou. But it wasn't until mid-February
that the World Health Organization got its first official report of 305 cases
and five deaths from an unidentified respiratory disease.