Delta is one of the most transmissive and dangerous viruses in history. Many times worse than previous strains of COVID. Delta has the capability of burning through communities even with relatively high vaccine coverage. We are dealing with a historically dangerous strain!
And despite this, daily deaths are significantly lower per capita than previous outbreaks in Isreal despite daily case loads being already as high as previous outbreaks.
If anything, what's happening in Isreal is an indicator that not only are vaccines working, but they are working well. Even as efficacy has reduced over time.
And lastly, efficacy of a COVID vaccine feels kinda orthogonal to efficacy of an HIV vaccine, no?