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December 30, 2022
New Study: 3rd Dose of COVID-19 Vaccine May Worsen Immune Response
![NTD News](https://vs1.youmaker.com/ymk/image/20231128/Edituse2021_1701202392201.jpeg)
NTD News
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Can a third dose of Pfizer and Moderna vaccines actually worsen immune response against COVID-19? A peer-reviewed study published in Science Immunology last week is causing concern.
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