CNN: “If you want to travel next year, you may need a vaccine passport”

“I think where exposure notification ran into some challenges was more of the piecemeal implementation choices, lack of federal leadership … where each state had to go it alone and so each state had to figure it out independently,” said Jenny Wanger, who leads the exposure notification initiatives for Linux Foundation Public Health, a tech-focused organization helping public health authorities around the world combat Covid-19.