Health Care

How people reacted to Pfizer, Moderna declaring their COVID-19 vaccines work

How people reacted to Pfizer, Moderna declaring their COVID-19 vaccines work”

The companies said they'll also submit an application for emergency authorization with the U.S. Food and Drug Administration (FDA) and other worldwide regulators in the same time frame. Out of 170 people who went on to get Covid, 162 were in the placebo group and only eight in the vaccine group. It showed that the vaccine was more than 90 percent effective.

Speaking with CP24 on Wednesday afternoon, infectious disease specialist Dr. Abdu Sharkawy said that while the news that two of those vaccines are proving effective is positive, they won't necessarily be approved for distribution in Canada as quickly as they may be in the U.S.

Pfizer and BioNTech added that there were no serious safety concerns. Efficacy in adults over 65 years was over 94%. This is a big deal because other vaccines have been known to be less effective among older people, who are most at risk from getting seriously ill from Covid-19. "This is the evidence we needed to ensure that the most vulnerable people are protected", said Andrew Hill, senior visiting research fellow at the University of Liverpool's department of pharmacology.

Neither company has published the results in scientific papers. But they are ready to share the information with the FDA and other regulatory agencies around the world. To make an mRNA vaccine, scientists create a genetic material that directs the human body to produce antibodies that can recognize and destroy the new coronavirus.

The US Food and Drug Administration could grant emergency-use by the middle of December, BioNTech Chief Executive Ugur Sahin told Reuters TV. Full formal approval is likely to follow the EUAs by about three months, they said.

That suggested that the vaccine is 95 percent effective beginning 28 days after the first of two doses. It isn't known how well the shot works in key subgroups, such as the elderly.

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The American multinational corporation is scaling up manufacturing and plans to have a billion doses available in 2021.

Pfizer and BioNTech have announced their large Phase 3 COVID-19 vaccine trial is complete.

Distribution of a Pfizer shot is complicated by the need to store it at ultra-cold temperatures of -70 degrees Celsius. These containers can also be used for storage by refilling with dry ice.

The announcement comes just days after similarly encouraging news from Moderna Inc. about its vaccine. They can be stored for up to 6 months at minus-20 degrees Celsius.

The state-owned company Sinopharm said in November that out of 56,000 people who had received its vaccination and travelled overseas, none had been infected with coronavirus.



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