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Two years since Covid-19 appeared in the US, Columbia University experts have taken a deep dive into how it has changed our society.

With more hurricanes hitting the United States, and the potential for larger and nastier storms, experts say the risk for illness and death in their aftermath is increasing.

Here’s what the past can tell us about the future of the pandemic.

Ukraine’s relatively low vaccination rate could have implications for how large additional surges of cases, both in the country and in the region become as a result of the war.