The first U.S. states that rolled out smartphone apps for tracing the contacts of COVID-19 patients are dealing with technical glitches and a general lack of interest by their residents.

But the project actually drew inspiration from a 2014 U.S. high school ... in partnership with Alphabet Inc's Google last month limits the personal data contact tracing apps can collect, which ...

With COVID-19 cases in the U.S. still rising, many experts say the next phase in the pandemic response will require aggressive contact tracing. The technique has been used extensively in prior ...

Contact Tracing Apps Outside the U.S. “The first letter, P [of PACT], is for ‘private.’ That’s intentional,” says Zissman. This approach is decentralized, which means that there is no government ...

Coronavirus contact tracing programs across the U.S. scaled back their ambitions ... Click here to submit a Letter to the Editor, and we may publish it in print.

If the U.S. so far has been in a defensive stance against the virus — shutting down large swaths of the economy in the process — contact tracing is a way to go after the virus and keep it at bay.