This week, all 50 states officially opened up eligibility for covid-19 vaccination to all adult residents. But while millions of Americans are still lining up to get their dose, experts warn that the country is quickly approaching a vaccine surplus, with too few takers to meet the supply we have...

This week, all 50 states officially opened up eligibility for covid-19 vaccination to all adult residents. But while millions of Americans are still lining up to get their dose, experts warn that the country is quickly approaching a vaccine surplus, with too few takers to meet the supply we have...