![COVID-19 breakthrough cases are rare — and preventable — but it's going to take a big effort to stop them COVID-19 breakthrough cases are rare — and preventable — but it's going to take a big effort to stop them](https://hips.hearstapps.com/vidthumb/images/rise-in-confirmed-covid-19-cases-massachusetts-1626820041.jpg?crop=1.00xw%3A1.00xh%3B0%2C0&resize=810%3A*&quality=70)
COVID-19 breakthrough cases are rare — and preventable — but it's going to take a big effort to stop them
![Evidence for increased breakthrough rates of SARS-CoV-2 variants of concern in BNT162b2-mRNA-vaccinated individuals | Nature Medicine Evidence for increased breakthrough rates of SARS-CoV-2 variants of concern in BNT162b2-mRNA-vaccinated individuals | Nature Medicine](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41591-021-01413-7/MediaObjects/41591_2021_1413_Fig1_HTML.png)
Evidence for increased breakthrough rates of SARS-CoV-2 variants of concern in BNT162b2-mRNA-vaccinated individuals | Nature Medicine
Governor Michelle Lujan Grisham - Breakthrough COVID-19 cases don't mean the vaccines aren't working – in fact, the data is crystal clear that they're a tiny fraction of cases. Nearly all cases
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Breakthrough COVID-19 infections and deaths rose during delta, but far outpaced by the unvaccinated - ABC News
![Percentage of breakthrough COVID cases in Mass. decreased last week; 62% of new cases among unvaccinated people - masslive.com Percentage of breakthrough COVID cases in Mass. decreased last week; 62% of new cases among unvaccinated people - masslive.com](https://www.masslive.com/resizer/NfyooZI8C2kNAbbH2whrgPTH45w=/1280x0/smart/cloudfront-us-east-1.images.arcpublishing.com/advancelocal/DY4O2MBP5VDHTFZ4W2YGX3IVSY.png)
Percentage of breakthrough COVID cases in Mass. decreased last week; 62% of new cases among unvaccinated people - masslive.com
![Breakthrough COVID cases are rising in Alaska. Here's why, and why vaccines are still 'amazing.' - Alaska Public Media Breakthrough COVID cases are rising in Alaska. Here's why, and why vaccines are still 'amazing.' - Alaska Public Media](https://media.alaskapublic.org/wp-content/uploads/2021/08/Screen-Shot-2021-08-29-at-10.13.16-PM-600x412.png)
Breakthrough COVID cases are rising in Alaska. Here's why, and why vaccines are still 'amazing.' - Alaska Public Media
![Despite 'Breakthrough' COVID, Almost All Georgia Cases And Deaths Are Among Unvaccinated | Georgia Public Broadcasting Despite 'Breakthrough' COVID, Almost All Georgia Cases And Deaths Are Among Unvaccinated | Georgia Public Broadcasting](https://www.gpb.org/sites/default/files/styles/flexheight/public/2021-07/covidcasesvaccines072821-03.jpg?itok=8riathq4)