Wall Street and European markets soar after Pfizer announces its product is 90% effective, but method has disadvantage of requiring deep freeze storage

Small German biotech firm, started by a husband and wife team with Turkish roots, has never brought a vaccine to market before

President falsely suggests federal body, drugmaker conspired with Democrats to postpone announcement because they 'didn’t want to have me get a Vaccine WIN'

Top companies expected to complete safety testing by end of November, before turning to FDA for emergency approval of shots

Israeli virologists heartened by fact American immunization uses similar tech to homegrown effort, targets the same protein on coronavirus

Already buoyed by Biden's electoral win, Dow futures jump 4.2% while those for the S&P 500 rise 3.1%

Health Ministry chief confirms negotiations with US company to procure coronavirus shot, which preliminary data has indicated is over 90% effective

Analysis from independent data monitoring board looks at 94 infections recorded so far in study of nearly 44,000 people; company says no participants became severely ill

Pharmaceutical giant has signed an agreement with US government to produce millions of doses even before they are deemed safe and effective

Pharmaceutical giant says if safety data from trials, expected about 2 weeks after US elections, is positive, it will go ahead with request for 'emergency use authorization'