< All Topics Main Health Covid-19 Long-Term Studies Of COVID-19 Vaccines Hurt By Placebo<br>Recipients Getting Immunized Print Long-Term Studies Of COVID-19 Vaccines Hurt By PlaceboRecipients Getting Immunized PostedAugust 25, 2021 UpdatedAugust 25, 2021 Bymatthias76dtd 2021.02.19 npr.org-Long-Term Studies Of COVID-19 Vaccines Hurt By Placebo Recipients Getting ImmunizedDownload