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CEOs shouldn't make promises about coronavirus vaccine results before the science is ready, health experts say

September 14, 2020. Summarized by summa-bot.

A lab technician wearing a full body protection suit inspects a bottle containing growth media for virus production during coronavirus vaccine research at the Valneva SA laboratories in Vienna, Austria, on Thursday, Aug. 6, 2020. The U.K. has signed agreements to buy 90 million doses of vaccines in development by drugmakers including Pfizer Inc., BioNTech SE and Valneva SE, joining countries around the world racing to secure supplies of protection against Covid-19. Photographer: Akos Stiller/Bloomberg via Getty Images

Though there have been promising developments in the race for a vaccine, public health experts warned that Americans should be skeptical of claims from companies that the United States soon will know if a Covid-19 vaccine is safe.

(CNN)Though there have been promising developments in the race for a vaccine, public health experts warned that Americans should be skeptical of claims from companies that the United States soon will know if a Covid-19 vaccine is safe.

"There's a lot of incentive for any corporation to be the first to produce an effective vaccine," epidemiologist and public health expert Dr. Abdul El-Sayed told CNN's Wolf Blitzer Sunday.

El-Sayed's comments came as Pfizer CEO Albert Bourla told CBS' "Face the Nation" on Sunday that there was a "quite good chance" that the team testing its potential vaccine will know whether it works by the end of October.

When asked whether people would have to wait until 2021 to actually get the vaccine, Bourla said that he didn't know how long it would take for regulators to approve it.

Pausing a vaccine trial is a standard precaution, US National Institutes of Health Director Dr. Francis Collins told a Senate hearing Wednesday.

Even though preliminary results show signs the vaccines under development may work, Dr. Celine Gounder told Blitzer that researchers won't really know how effective the products are until they are tested on a wider range of populations.

As a preventive measure, Ohio State University plans to cancel Spring Break in 2021 to reduce the exposure of its students, staff and faculty, the university said Sunday, saying that it allow students two days off from classes instead.

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