"Unproven vaccines have real risks. The 1976 swine flu vaccine was linked to a rare paralytic neurological illness called Guillain-Barré syndrome, arguably fueling vaccine mistrust that persists to this day," writes @TimLaheyMD nyti.ms/2VN4Vrd
"One novel H.I.V. trial was stopped early because certain vaccine recipients became more likely to be infected than placebo recipients." nyti.ms/2VN4Vrd 
"There is good reason to worry a coronavirus vaccine could elicit harmful immune responses too." nyti.ms/2VN4Vrd
To keep all of us safe, scientists must conduct large, placebo-controlled coronavirus vaccine trials.
Read more from @TimLaheyMD, an infectious-disease physician and vaccine researcher. nyti.ms/2VN4Vrd
Read more from @TimLaheyMD, an infectious-disease physician and vaccine researcher. nyti.ms/2VN4Vrd
