A new standby list for COVID-19 vaccines is rolling out across the country to connect people with doses that would otherwise go to waste.
More than half a million people have already signed up on Dr. B, which texts users based on their eligibility status when there are extra doses nearby in jeopardy of going unused.
Cyrus Massoumi, the website's founder, said Dr. B serves as a "way of helping people help people."
Start the day smarter. Get all the news you need in your inbox each morning.
"You have people who want the vaccines for them or their loved ones, and your vaccine providers want to do the right thing, but they need the appropriate tools to deal with the operational challenges of vaccinating the whole country," Massoumi told USA TODAY.
So far, Dr. B is helping people get vaccines through two providers in Arkansas and New York, but it will have 200 vaccination sites across 30 states using the tool in the coming weeks, said Massoumi, a co-founder and former CEO of Zocdoc, the online doctor's appointment booking website.