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Continue to ChatSmartphone App Sends Alert If You've Been Exposed to COVID-19 https://kupui.com/news/2020/04/28/smartphone-app-sends-alert-if-youve-been-exposed-to-covid-19.html
Smartphone App Sends Alert If You've Been Exposed to COVID-19 https://kupui.com/news/2020/04/28/smartphone-app-sends-alert-if-youve-been-exposed-to-covid-19.html