Pennsylvania health officials say there are several obstacles to distributing the coronavirus vaccines across the state. We take a look at what they are.
If effective, Johnson & Johnson's one-dose vaccine could quickly help large swaths of the United States develop immunity to COVID-19. That would be a game changer.
The federal government has largely left vaccine distribution to the states without giving them the necessary resources or infrastructure, resulting in an under-funded, decentralized plan that has created the mess we see today.