This winter, COVID-19 hospitalization rates are at their lowest since the pandemic began, with a peak rate of 4 per 100,000 hospitalized. This mild surge can be attributed to prior immunity from a summer wave of COVID-19 and a phenomenon called viral interference, where circulating viruses like influenza may hinder the spread of COVID-19. Experts state that there hasn't been a new variant that significantly bypasses the immunity built up in the population.
This year's winter wave is low compared to previous winters. This is the smallest winter wave we've had since the pandemic began.
There are less people available to get infected because they had a recent boost in immunity.
It's possible that viral interference is playing a role this year. There's a lot of influenza circulating.
No new variant has evolved that's any better at getting around the immunity people have built up.
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