The maps add to tech companies' growing efforts to use their vast networks and data-collection tools to help provide a clearer picture of the outbreak and possibly create systems that will help states ease lockdowns. Apple and Google have begun building a system for smartphone-based contract tracing.
Instagram co-founders Kevin Systrom and Mike Krieger, who left Facebook in 2018, launched a website last week to track how COVID-19 is spreading in each state in real time. The site, RT.live, uses a metric called an effective reproduction number, which measures the average number of people who get the virus from one infected person.
Privacy advocates have warned that such efforts must not be taken lightly.
The announcement comes after the White House and the Centers for Disease Control and Prevention asked tech companies like Facebook, Google and Apple for greater access to Americans' location data in March to fight the spread of coronavirus.
Officials hoped to use the anonymous, aggregated data to track the virus' spread, a system called syndromic surveillance.
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Researchers have already been using Facebook's maps showing population movement, which are created using the social media company's access to aggregate location data.
The maps are meant to help researchers understand the spread of the disease and how it's affected by population patterns. They don't show individual patterns, just information at the city or county levels.
Facebook revealed three new tools in early April: co-location maps, which show the chances that people in one area will come into contact with people in another; movement range trends, which show regionally whether people are staying near their homes or visiting lots of parts of town; and a social connectedness index, which shows friendships across states and countries.
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April 20, 2020 at 05:03PM
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Facebook releases county-by-county maps of COVID-19 symptoms - NBC News
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