提早偵測流感的方法
I've spent most of the week with the flu. I'd heard flu season was
starting early this year, but I wasn't prepared for it to be this early, in
part because predictions for flu outbreaks are still not that
precise—especially in germy places like here in New York City .
But a new
approach, borrowing real-time analysis techniques from the latest weather prediction models, might be
able to forecast the next flu season.
Weather
modeling draws on current
conditions and filters
to make predictions. Now that we're all Googling
flu-related queries
when we get sick, real-time influenza infection rates are available
online. Epidemiologists can feed this info into models like the ones used for weather
that can sort
through the chaos to predict sickness or health.
Researchers tested
the flu formula against data from
five actual recent flu
seasons in New York City .
Given online
flu search information, they were
able to predict the peak of the outbreak in the city nearly two months
in advance. The findings are in Proceedings of the National Academy of
Sciences. [Jeffrey Shaman and Alicia Karspeck, Forecasting Seasonal Outbreaks
of Influenza]
Now, I would love
a prediction
of when I'm going to be fully recovered.
[The above text is
a transcript of this podcast.]( scientific american)
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