Detecting disease outbreaks

Detecting disease outbreaks - Detecting disease outbreaks...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Detecting disease outbreaks using searching The mathematics of it
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Search logs • Google (and others, we suppose) – Maintain logs of searches – Break them down geographically (IP addresses) – Track the trends over time • Shows what topics are “hot” – Sports – celebrities
Background image of page 2
Examining Google trends http://www.google.com/trends – barack obama – george bush – hillary clinton • You can see that the US has a 4 year cycle of presidential news. • That Hillary Clinton did not win the nomination • Some things come in annual cycles
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Example Cycles • Sports seasons – Baseball – Basketball Some things don‟t have cycles – Britney Spears =0
Background image of page 4
Some cycles are important • Seasonal health problems, such as the “flu” (influenza) Illnesses have symptoms Ache; fever; sore throat; …. Do they show up as search terms Yes. But there could be many reasons for particular searches http:// ate=all&sort=0
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
There is a national center • The Center for Disease Control (CDC) – Issues a regular report on the number of cases of the flu that have been reported to it. – Collection of the data takes over a week, – “CDC publishes national and regional data from these surveillance systems on a weekly basis, typically with a 1-2 week reporting lag”. – Epidemics of seasonal influenza are a major
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 21

Detecting disease outbreaks - Detecting disease outbreaks...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online