Our fall COVID boosters will likely be a monovalent XBB formula - Ars Technica

[JCMach1]

2. I am in the middle of my 4th Covid infection despite all vaccinations...

XBB is rougher than Omicron which I had last year. Also, it's spreading like crazy in the US and apparently elsewhere (I was in UK/where I caught it).

It also seems a bit tricky. Negative test first few days, thought I had a sinus infection. 3 day, I couldn't smell at all. Retested and Pos. Got antivirals, and continued zpack. Also, felt like my immune system kicked in last night.

Short lesson is version 1 came extremely close to snuffing me out pre-vaccine. While I have been infected 3 freaking times now, the vaccines have kept me out of the hospital ward and alive. XBB is a very bad version. Get your vaccines. If I wasn't vaccinated I wouldn't be talking to you right now, I would hospitalized with this one and possibly on my way to ICU. This one is not a little cold like some of the wimpier variants.