The organization wants to vaccinate 70% of the world by mid-2022, but says there's not nearly enough funding to make that happen.
As smaller hospitals try to find beds, large medical facilities in some areas are straining to find the staff to handle patients in need of high-level care.
Auto makers are trying to figure out the best way to encourage more workers to get vaccinated.
Experts said COVID-19 will not be eradicated and more than vaccinations are needed for economic recovery during a hearing held by the Joint Economic Committee Wednesday.
For COVID-19, predictions of what it will take to reach herd immunity vary wildly, and it's more complicated than one magic number.
Large sports facilities across the country are handling a new kind of crowd: people looking to get inoculated against COVID-19.