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Different types of COVID-19 vaccines: How they work

COVID-19 vaccines lower the risk of getting sick, seriously ill or dying from the disease. But how do the different types of COVID-19 vaccines work? Each COVID-19 vaccine causes the immune system to ...
Medical Xpress

CDC pauses release of COVID vaccine effectiveness study

A health report on COVID-19 vaccines has been delayed after concerns about how the study was conducted. The report, from the U.S. Centers for Disease Control and Prevention (CDC), found that COVID ...
Medical Xpress

CDC report on COVID vaccine blocked from publication

A federal report pointing out the benefits of COVID-19 vaccines may never be released, according to multiple people familiar with the decision. The study found that the vaccine reduced emergency room ...

Acting CDC Director Jay Bhattacharya Called A Vaccine Study Design 'Crap.' What The Test-Negative Design Is And How We Know Whether Vaccines Measured With It Are Effective

Jay Bhattacharya dismissed the test-negative design as 'crap.' The biostatistics literature tells a different story.
The Hill

HHS nixes publication of study showing effectiveness of COVID vaccines

The acting head of the Centers for Disease Control and Prevention (CDC) blocked the publication of a study on the effectiveness of COVID-19 vaccines, a Department of Health and Human Services (HHS) ...