Pfizer leaps 15% on news that its COVID-19 vaccine is over 90% effective in preventing illness

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Pfizer leaps 15% on news that its COVID-19 vaccine is over 90% effective in preventing illness
Chandan Khanna/AFP via Getty
  • Pfizer stock soared as much as 15% on Monday after the company announced its coronavirus vaccine succeeded in final-stage clinical trials.
  • The US drugmaker's vaccine is being developed with the German biotech firm BioNTech, whose shares soared 25% at intraday highs on the news.
  • The vaccine won't be immediately available, as it still needs to be reviewed by the US Food and Drug Administration.
  • The companies said they expected to produce up to 50 million vaccine doses in 2020 and up to 1.3 billion doses in 2021.
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Pfizer stock leapt as much as 15% on Monday after the drugmaker announced that its experimental COVID-19 vaccine succeeded in late-stage trials.

The US pharma firm said its vaccine, developed with a German biotech partner, BioNTech, was over 90% effective in preventing COVID-19 infection. BioNTech's shares soared 25% at intraday highs.

"Today is a great day for science and humanity," Dr. Albert Bourla, Pfizer's chairman and CEO, said in a statement. "The first set of results from our Phase 3 COVID-19 vaccine trial provides the initial evidence of our vaccine's ability to prevent COVID-19."

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Pfizer said it would apply to the US Food and Drug Administration for emergency-use authorization — a step that would allow it to distribute the vaccine shot more widely. The approval request is contingent on additional safety data, which the company won't have until later in November.

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Pfizer and BioNTech are the first drugmakers to post successful results from crucial trials of a COVID-19 vaccine.

Both the S&P 500 and the Dow Jones industrial average opened at intraday records following the news and stayed strongly higher throughout the morning.

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