Pfizer says COVID-19 vaccine is looking 90% effective

Pfizer said Monday that an early peek at the data on its coronavirus vaccine suggests the shots may be a surprisingly robust 90% effective at preventing COVID-19, putting the company on track to apply later this month for emergency-use approval from the Food and Drug Administration.The announcement, less than a week after a presidential election that was seen as a referendum on President Donald Trump’s handling of the crisis, was a rare and major piece of encouraging news lately in the bat