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jrb451

Google searches help track sources of foodborne illness

jrb451
5 years ago

From an article in today's paper:


Harvard's Public Health Center is using Google tracking to find restaurants that make people sick. This is how they do it:

If you've been to Mom's Diner, and hours or even days later start searching on terms like "nausea" and "stomach cramps," there is a likelihood of a problem at Mom's. In Harvard's tests in Las Vegas and Chicago, health inspectors were sent out when the searches turned queasy. Over half the time -- 52 percent -- they found a problem at the restaurant where Google users had eaten.


Chicago has 38 inspectors for more than 8,000 restaurants. Using routine inspections, they find problems only 23 percent of the time, less than half the rate in tests of Google tracking.


Reading this, you might worry that Google Maps knows where you've been and is reporting it to the authorities. But researchers at Harvard used data that was unconnected to any specific person. They knew only that there had been unnamed people at a given restaurant searching for terms related to foodborne illness.

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