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  2. Jul 21, 2021 · The B.1.617.2 (delta) variant of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (Covid-19), has contributed to a surge in cases in ...

    • The Pfizer-Biontech Covid-19 Vaccine
    • The Moderna Covid-19 Vaccine
    • The Johnson & Johnson Covid-19 Vaccine

    Due to limited research so far, trying to determine the effectiveness of each vaccine against the Delta variant remains a challenge. However, there have been promising results from multiple studies.

    Many lab studies and real-life data suggest the Moderna COVID-19 vaccine works against the Delta variant.

    There’s little data that shows how effective the Johnson & Johnson (J&J) single-shot COVID-19 vaccine is at protecting against the Delta variant.

  3. Aug 9, 2021 · The delta variant is now the dominant form of SARS-CoV-2 in the UK and many other countries. Chris Baraniuk asks how effective the leading vaccines are against this new threat “Two days after my first symptoms, I began to feel seriously ill,” wrote BBC TV presenter Andrew Marr.1 He described how he had previously felt invulnerable having received both of his covid vaccine doses ...

    • Chris Baraniuk
    • 2021
  4. Jun 22, 2021 · Sputnik V and CoronaVac. The makers of the Russian Sputnik V COVID-19 vaccine recently announced on Twitter that their vaccine was more effective against the delta variant than others. They added ...

  5. Nov 10, 2021 · The findings show that the BNT162b2 vaccine was more effective than the ChAdOx1 nCoV-19 vaccine, and both vaccines were less effective against the delta variant than against the B.1.1.7 (alpha ...

  6. Jul 27, 2021 · The Pfizer/BioNTech vaccine is 88% effective against Delta after two shots versus 93.7% against original Covid-19 after two shots, according to a lab study. What this means is that if everyone in ...

  7. Aug 26, 2021 · TABLE. Effectiveness of COVID-19 vaccines against any SARS-CoV-2 infection among frontline workers, by B.1.617.2 (Delta) variant predominance and time since full vaccination — eight U.S. locations, December 2020–August 2021; Period and vaccination status No. of contributing participants* Total no. of person-days Median days (IQR)

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