KEY POINTS
  • Two Covid-19 vaccines have been found to be highly effective in late-stage trials in recent days, boosting optimism at a time when health systems in Europe and the U.S. are once again being pushed to breaking point.
  • Huge challenges remain before a vaccine can be rolled out, however.
  • The global battle to secure prospective supplies has raised alarm about equitable access, while questions remain over logistics, distribution, and, perhaps most significantly, cost.

In this article

LONDON — Drugmakers and research centers are scrambling to deliver a safe and effective vaccine to help bring an end to the coronavirus pandemic that has claimed over 1.3 million lives worldwide.

Two Covid-19 vaccines have been found to be highly effective in late-stage trials in recent days, boosting optimism at a time when health systems in Europe and the U.S. are once again being pushed to breaking point.

In this article