Moderna chief says there is no evidence yet that vaccines prevent transmission



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  • Moderna chief medical officer Tal Zaks told Axios the public should not “overinterpret” the results of vaccine trials to assume that life could return to normal after vaccinating adults.
  • “They don’t show that they potentially stop you from transiently carrying this virus and infecting other people,” Zaks Told Axios.
  • Although he believes, based on science, that the vaccine is likely to prevent transmission, but said there is still no strong evidence for this.
  • “I think it’s important that we don’t change behavior just on the basis of vaccination,” he said.
  • Visit the Business Insider homepage for more stories.

Moderna chief medical officer Tal Zaks told Axios the public should not “overinterpret” the results of vaccine trials to assume that life could return to normal after vaccinating adults.

Zaks warned that the results of the trial show the vaccine can prevent someone from getting sick or “seriously ill” from COVID-19, however, the results do not show that the vaccine prevents transmission of the virus.

“They don’t show that they potentially stop you from transiently carrying this virus and infecting other people,” Zaks said in an interview for “Axios,” the point of sale show on HBO.

Zaks added, “When we start rolling out this vaccine, we won’t have enough hard data to prove that this vaccine reduces transmission.”

Although he believes, based on science, that the vaccine is likely to prevent transmission, there is still no strong evidence for this.

“I think it’s important that we don’t change behavior just on the basis of vaccination,” he said.

Moderna’s COVID-19 vaccine is one of three vaccines that have been shown to be effective in trial results. The company said its vaccine was 94.5% effective in protecting people against COVID-19, the disease caused by the novel coronavirus.

Moncef Slaoui, the head of Operation Warp Speed, the White House’s program to develop and administer the vaccine, said on Sunday the company will seek emergency use authorization from the Food and Drug Administration for its COVID vaccine. -19 by the end of November.

Pfizer, which has formulated another vaccine, requested emergency clearance from the FDA on Friday.

On Monday, AstraZeneca and the University of Oxford also reported that their vaccine was effective against COVID-19.

There have been at least 12.4 million infections in the United States to date with more than 257,000 deaths, according to data from Johns Hopkins University. Daily cases in the United States have repeatedly reached record levels in the weeks leading up to Thanksgiving, and many public experts have warned that this could be the deadliest wave of the virus in the United States.

The title of this article has been updated to show that Moderna’s coronavirus vaccine can keep people from getting sick.

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