Why Aren't COVID-19 Contact Tracing Apps Working?

Why Aren't COVID-19 Contact Tracing Apps Working? While researchers have worked for months to develop COVID-19 vaccines and treatments, contact-tracing apps like COVID Trace have been touted as one of the technology world’s most promising contributions to the fight against the pandemic. But seven months into the U.S. outbreak, such apps have made slow progress across the country, hampered by sluggish and uncoordinated development, distrust of technology companies, and inadequate advertising budgets and messaging campaigns.