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American scientists skeptical of single-dose regimen for Pfizer, Moderna Covid Vaccines

BUZZ, the ETF of Social-Media Darlings, Drops in Trading Debut

Single dose of AstraZeneca or Pfizer COVID-19 vaccine reduces risk of hospitalization by more than 80%, study shows

J&J Covid-19 vaccine shipments target states

UK Covid-19 vaccine program eliminated deaths and hospitalizations

J&J’s single-dose Covid-19 vaccine is effective in all demographic groups, say FDA scientists

UK lessons on a more contagious Covid-19 variant

Pfizer’s Covid-19 vaccine is equally effective for young and old, Israeli study concluded

UK Covid-19 vaccine release data show substantial drop in infections

Israel avoids questions about vaccine exchange for prisoner with Syria

China deploys Covid-19 vaccine to increase influence, with the US on the sidelines

The single dose of the Pfizer vaccine is 85% effective, shows an Israeli study