Early trial results keep Pfizer vaccine development on track for possible 2020 distribution

narvikk/iStockBy KELLY MCCARTHY, ABC NEWS (NEW YORK) -- As the novel coronavirus continues to spread across the U.S. and abroad, new hope may be emerging in the race to develop a vaccine. Pfizer, one of a handful of...

July 1, 2020Updated: July 1, 2020

By News Channel Nebraska