Delta variant still dominates, experts say, urging third jab - The Times of Israel

1. Delta variant still dominates, experts say, urging third jab  The Times of Israel
2. UK study finds mRNA COVID-19 vaccines provide biggest booster impact  Reuters
3. Moderna or Pfizer? Head-to-head study finds one is slightly more effective, Harvard researchers say  WKRN News 2
4. A new study finds that most COVID-19 boosters strengthen immunity, though there is no winning shot  MarketWatch
5. Moderna or Pfizer? Head-to-head study finds one is slightly more effective  KRON4
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