Virginia launched the first COVID-19 contact tracing app on Wednesday (Aug. 5), using the public health surveillance framework created by an Apple and Google partnership, while other interested states and federal policymakers grapple with how to encourage the public to use them. The tech giants rolled out the contact tracing software in May, inviting states to use it to develop their own contact tracing apps. User privacy and security are central to the design, Apple and Google said in May...