Articles, Blog

Google Flu Trends Overview

November 4, 2019

[music playing]>>Welcome to Google Flu Trends. Today, we’re
going to show you how Google Flu Trends works. Google Flu Trends uses aggregated search data
to estimate flu activity in near real time. Millions of people search for health information
online. As you can imagine, there are more flu related
searches during flu season and we found that certain search trends are good indicators
of actual flu activity. We collaborated with the US Centers for Disease
Control, or CDC, to help us create Google Flu Trends for the US.
For example, the past five years’ flu seasons might have looked like this.
We then look at the popularity of individual search queries over this time period.
Using this method, we identified search queries that matched well with CDC’s data.
Google Flu Trends is updated in near real time.
For instance, on this date, Google Flu Trends detected a significant increase in flu activity.
CDC reported the same increase two weeks later. For some countries, like Mexico, we don’t
have official historic data to work from. Instead, we look for flu related search queries
that appear to have a seasonal curve. Since these estimates have not been compared
with official historic flu data, we label them “experimental.”
Personal search data remains safe and private. We do not use personal health records or personally
identifiable data to create our estimates. Our graphs are produced by an automated formula
that looks at aggregated data from millions of searches done on Google over time.
An important aspect of Google Flu Trends is that we filter out terms that may be popular
because people hear about them in the news. Google Flu Trends compliments existing flu
surveillance tools. Earlier detection of flu activity allows public
health officials and the public to make more informed decisions.
For official information about flu activity, prevention, and treatment please visit your
national or local health resource. [music resumes] Check out Google Flu Trends.


  • Reply strawberry October 9, 2009 at 9:51 pm

    very interesting

  • Reply Dan Frederiksen October 10, 2009 at 1:06 am

    nice, but how about you use your influence to raise awareness of the infection vectors so we can get rid of disease instead of just monitoring its spread. simple things like advocating credit card payment keypads and atm keypads be non touch interfaces. they are huge infection hubs because everyone touches the same spot. a little intelligence in our world can elliminate disease altogether. disease like cancer is often linked to virus damage so it's all connected

  • Reply Ryan Johnson January 28, 2010 at 10:23 pm

    The only thing wrong with this analysis is that H1N1 isn't a pandemic and the advice to get yourself vaccinated is more detrimental than helpful.

  • Reply Roul Duke November 5, 2010 at 12:18 pm


  • Reply Neowolf882 November 7, 2010 at 6:49 am

    ah great here comes the media saying "WORST EPIDEMIC EVER IN THE HISTORY OF MANKING APOCOLYPSE RUN!"

  • Reply MrWafflez000 October 16, 2017 at 1:13 pm

    i come from the future

  • Reply ThermicKestrel October 23, 2017 at 7:54 pm

    norlem is the best

  • Reply Isaias Martinez November 1, 2017 at 6:01 pm

    Shoutout to Mrs.Chaudhari's class

  • Reply Zaul Hernandez Loza, November 1, 2017 at 6:02 pm

    This is not a tutorial on how to get a girlfriend on roblox!!! I want a refund!!!

  • Reply Darrik Houck November 1, 2017 at 7:29 pm


  • Reply Tsundere November 1, 2017 at 7:29 pm

    Fake google account, who the hell types

  • Reply David Rossington February 1, 2018 at 1:54 am

    sup from apcsp

  • Reply sippin' on straight chlorine February 19, 2018 at 2:06 am


  • Reply Nicholas Jno-Baptiste April 20, 2018 at 4:33 pm


  • Reply GamingJayZ October 30, 2018 at 2:24 pm

    rip google flu

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