After months of safety trials, large-scale clinical testing is finally getting underway for the leading novel coronavirus vaccine candidates.
The Trump administration hopes to approve at least one vaccine for widespread use before the end of the year. However, many experts are skeptical that a vaccine will be ready that quickly. And even when a vaccine is ready, actually deploying it could be easier said than done.
With or without a vaccine, America is in for a long, difficult fight against a stubborn and deadly virus that, as of Friday, had infected nearly 2.8 million Americans and killed more than 129,000, according to Johns Hopkin’s coronavirus tracker.