From their numbers it seems like the 20% of Israelis who are neither children nor vaccinated represent about 0 delta cases? To be able to do such a rounding er

From their numbers it seems like the 20% of Israelis who are neither children nor vaccinated represent about 0 delta cases? 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.