In 2020, people wanted a way to tell if they might have been exposed to COVID-19. More than 20 states in the U.S., including Pennsylvania and Delaware, used a smartphone app that applied existing ...

More states are launching mobile apps to support COVID-19 contact tracing and exposure notification efforts as cases continue to surge across the country. Here is how nine states are using mobile apps ...

Attorney General Mark Herring and a bipartisan coalition of 39 attorneys general are asking Apple and Google to ensure all contact tracing and exposure notification apps related to COVID-19 adequately ...

Apple and Google also implemented an "Express" feature that allows Exposure Notifications to work in partnership with health authorities, but without an Exposure Notification app. The APIs were ...

HARRISBURG, Pa. (AP) Â Pennsylvania's new coronavirus exposure notification app became available in app stores Tuesday could soon be compatible with those of three neighboring states, including New ...

From Philly and the Pa. suburbs to South Jersey and Delaware, what would you like WHYY News to cover? Let us know! In 2020, people wanted a way to tell if they might have been exposed to COVID-19.