This makes sense, unfortunately, as there's no long-term immunity granted to those who have colds, the flu, noroviruses, ... either. It's nice that some viruses are so stable that vaccines or sickness can confer immunity but so it goes. This is what endemic COVID looks like. Fortunately, it does not seem to be sending people to hospital at the moment/in the current environment. Take what good news one can get.
Google shows 25,000 hospitalizations and 2,700 people in ICUs in the US.
How does this compare to last year? Perhaps vaccination is insufficient in the us - was working from local data in Canada/Ontario. Google says Canada is 3501/236 so x9 to make them comparable? The last few months has seen cases remain up but not hospitalization. People catch covid but they stay at home.
> How does this compare to last year?
Much less! But those numbers intuitively feel not-insignificant. One wonders how they compare to capacity.
This is not about first-wave COVID not offering immunity for Omicron, which is already well known. This is saying if you caught first-wave COVID, you don't get super immunity from vaccines plus Omicron breakthrough infection.