https://www.reuters.com/article/us-health-coronavirus-who-apps/who-readies-coronavirus-app-for-checking-symptoms-possibly-contact-tracing-idUSKBN22K2QV >The World Health Organization (WHO) plans to launch an app this month to enable people in under-resourced countries to assess whether they may have the novel coronavirus, and is considering a Bluetooth-based contact tracing feature too, an official told Reuters on Friday.