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Pfizer says early data signals COVID-19 vaccine is effective

 

Pfizer says an early peek at its vaccine data suggests the shots may be 90% effective at preventing COVID-19, indicating the company is on track later this month to file an emergency use application with U.S. regulators.

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An Explanation for Some Covid-19 Deaths May Not Be Holding Up

Medical researchers are raising significant doubts about whether an agent of the human immune system causes some coronavirus patients to end up in the hospital with injured lungs and other organs, struggling to breathe. What remains is a continuing mystery about what causes certain people to die from Covid-19, and how best to prevent that.

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AstraZeneca says COVID-19 vaccine could arrive in January of next year

 

A long-awaited coronavirus vaccine could be available in roughly two months, according to drugmaker AstraZeneca, which is developing a treatment.

The Anglo-Swedish drugmaker is working with the University of Oxford to develop one of the most closely watched COVID-19 vaccines, which is in late stage trials in the U.S., the U.K. and other countries to determine its safety and effectiveness. Once those results are reported, regulators will have to approve the vaccine for widespread use.

AstraZeneca said it will analyze data from its vaccine trials in November and December. If the results look promising, it will move quickly to ramp up manufacturing and obtain government approval in the U.S. and elsewhere, Chief Executive Pascal Soriot said Thursday.

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