The wife and I got the new 2024 Spikevax yesterday. I'm fine except for a mild muscle and joint aches and fatigue. This one and the Pfizer are targeted to the KP.2 variant. Novavax has a non mRNA vaccine against JN.1 It's hard to know exactly when to get the new vaccine. We didn't get the booster in the spring this year and didn't get infected this summer so we decided to just go ahead. I know that some people are delaying vaccination with the idea of timing it closed to the anticipated seasonal increase in cases.