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COVID data tracker weekly review : interpretative summary for July 30, 2021
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July 30, 2021
[PDF-2.73 MB]
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Description:Interpretive Summary for July 30, 2021
Don’t Run Down the Shot Clock
COVID-19 cases, hospitalizations, and deaths are once again increasing in nearly all states, fueled by the B.1.617.2 (Delta) variant, which is much more contagious than past versions of the virus. The highest spread of cases and severe outcomes is happening in places with low vaccination rates. Although COVID-19 vaccination is the most effective prevention measure, vaccination rates across the United States have varied.
COVID-19 vaccines are very effective, but no vaccine is perfect. In some instances, fully vaccinated people will get COVID-19 and may be contagious. These are called “vaccine breakthrough cases.” A new CDC study finds that B.1.617.2 (Delta) can lead to breakthrough infections. This means that while vaccinated people are much less likely to get sick, it will still happen in some cases. As the number of people who are vaccinated goes up, the number of breakthrough cases is also expected to increase, even as the vaccines remain highly effective.
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