1. CDC Facing Questions Over Mask Guidance As Breakthrough Cases Rise

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  4. 'Would have been definitely hospitalized': Two fully vaccinated people share their stories of COVID-19 breakthrough cases

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  6. 'Would have been definitely hospitalized': Two fully vaccinated people share their stories of COVID-19 breakthrough cases

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  7. COVID-19 vaccines still working despite breakthrough cases, doctors say

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  8. About 99.999% of fully vaccinated Americans have not had a deadly Covid-19 breakthrough case, CDC data shows

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  9. Doctors see more COVID-19 breakthrough cases with omicron, say vaccines still help

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  10. Idaho Department of Health and Welfare Investigating Breakthrough Cases

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  11. Experts push for mask use following COVID-19 surge, breakthrough cases

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  12. Dr. Fauci Debunks COVID Vaccine Myths About Fertility, Breakthrough Cases, and More

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  13. Study: Moderna more effective than Pfizer vaccine at preventing breakthrough cases

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  15. Michigan monitoring "breakthrough" cases of COVID-19

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  16. Why do COVID-19 breakthrough cases occur?

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  17. Dr Fauci "discusses" Breakthrough Cases

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  19. Breakthrough covid-19 cases

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  20. ADHS: Nearly 50,000 breakthrough COVID cases have been reported in Arizona

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  21. Breakthrough cases also increasing as COVID cases rise in Michigan

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  22. Sunrise hospital has 11 breakthrough COVID-19 cases

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  23. As COVID cases rise, no clear data on breakthrough infections

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  24. Managing breakthrough COVID-19 cases

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  25. New vaccine study shows Moderna outperforming Pfizer in preventing breakthrough cases

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