Delta Variant Outbreak in Israel Infects Some Vaccinated Adults
wsj.com
wsj.com
This is a huge difference than if these people actually got sick.
The WSJ could have gone with a positive headline, instead they go with the one that causes doubt and fear in people. Then add the people who can't actually read the article to find out the details.
To be able to do such a rounding error in an article implies to me that delta is roughly as infectious in the vaccinated as vanilla was in the unvaccinated.
That's probably not a cause for concern for the vaccinated, as it won't even rarely kill them, but that does mean the herd immunity eventually will not be protecting the unvaccinated from a variant.