https://apnews.com/37595e41ddde3789796592bdcbfce2ee > Apple and Google are trying to get more U.S. states to adopt their phone-based approach for tracing and curbing the spread of the coronavirus by building more of the necessary technology directly into phone software. > That could make it much easier for people to get it on their phone even if their local public health agency hasn't built its own compatible app.