# Early, but growing evidence vaccines less effective against Delta

**URL:** <https://boards.straightdope.com/t/early-but-growing-evidence-vaccines-less-effective-against-delta/945775>\
**Category:** The Quarantine Zone\
**Tags:** covid-quarantine\
**Created:** [July 6, 2021, 12:21am UTC](https://boards.straightdope.com/t/early-but-growing-evidence-vaccines-less-effective-against-delta/945775 "2021-07-06T00:21:59Z")\
**Posts on this page:** 1\
**Showing post:** 48

<div class="post-metadata">

**Author:** ![Leaper](https://avatars.discourse-cdn.com/v4/letter/l/4bbf92/32.png) [@Leaper](https://boards.straightdope.com/u/Leaper)\
**Post date:** [July 6, 2021, 8:31pm UTC](https://boards.straightdope.com/t/early-but-growing-evidence-vaccines-less-effective-against-delta/945775/48 "2021-07-06T20:31:00Z")

</div>

Possible evidence in the other direction: [Vaccines extremely effective against COVID variants of concern: Canadian study - Macleans.ca](https://www.macleans.ca/news/vaccines-extremely-effective-against-covid-variants-of-concern-canadian-study/)

---

_[View the full topic](https://boards.straightdope.com/t/early-but-growing-evidence-vaccines-less-effective-against-delta/945775)._