Keyword Analysis & Research: moderna efficacy against delta variant cdc

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Frequently Asked Questions

What is the effectiveness of the delta variant in 2021?

During June–July 2021, when B.1.617.2 (Delta) variant circulation predominated, effectiveness declined significantly to 53.1%. What are the implications for public health practice?

Do covid-19 vaccine breakthrough infections increase with Delta variants?

VE before and during SARS-CoV-2 B.1.617.2 (Delta) variant predominance, which coincided with an increase in reported COVID-19 vaccine breakthrough infections, were compared ( 3, 4 ). Methods for the HEROES-RECOVER Cohorts have been published previously ( 1, 2, 5 ).

How effective is the Moderna covid-19 vaccine?

Similarly, in Minnesota last month, the authors found that the Moderna vaccine (also known as mRNA-1273) was 76% effective at preventing infection, but the Pfizer vaccine (known as BNT162b2) was 42% effective.

Is Moderna's vaccine better than Pfizer?

The study found the Moderna vaccine produced more than double the antibodies compared to Pfizer, but doctors urge caution. “Antibody level itself is interesting, but it doesn’t necessarily lead to a significant difference in the way the vaccine is performing,” said Dr. Allison Arwady, Commissioner of the Chicago Department of Public Health.


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