Some experts have recommended getting a COVID-19 vaccine to protect against the summer surge. “Now is the time to get a dose with this surge,” Michael Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, told CNN on Sunday.
However, the only vaccines currently available target last year’s strains (related to the XBB.1.5 omicron variant), which are long gone and may not offer strong protection against current strains (JN.1 and KP.2 omicron variants). Even if the 2024–2025 KP.2-targeting vaccine is approved by the FDA this week and hits pharmacy shelves next week, a dose takes two weeks to produce full protection. By that time, the summer wave will likely be declining. In fact, it looks to have already peaked in some parts of the country, including in some southern and western areas.
The other thing to consider is timing for maximum protection for the likely winter wave. For healthy people five years old and above, the CDC recommended getting only one shot last year. The shots offer peak protection for around four months. If you get your annual shot at the beginning of September, your protection may be on the decline if COVID-19 peaks again at the turn of the year, as it has the past two years.
So you should get a shot now, but it won’t be available for at least a week, and then by the time it’s effective the Summer surge will likely already be over, and it won’t last long enough to cover the next (Winter) surge, so maybe hold off on getting the shot yet. 
