Proof of vaccination to travel or attend school is not new, but the coronavirus has introduced a potential need to modernize outdated paper standards. <a href="https://www.washingtonpost.com/video/technology/hoping-to-travel-in-2021-you-might-need-a-vaccine-passport/2021/02/25/23044755-3516-4d03-ae68-11ee1d58ced3_video.html" target="_blank" rel="nofollow">https://www.washingtonpost.com/video/technology/hoping-to-travel-in-2021-you-might-need-a-vaccine-passport/2021/02/25/23044755-3516-4d03-ae68-11ee1d58ced3_video.html</a>