Winter will make the pandemic worse. Here’s what you need to know.

In MIT Technology Review

As the weather gets colder and people spend more time inside, improving air circulation and filters in buildings will be key to controlling covid-19.

From my article in MIT Technology Review, posted Oct. 8, 2020

As we head into the Northern Hemisphere fall with covid-19 still raging in the US and a number of other parts of the world, two data points provide cause for extra concern.

One is that the seasonal flu—a respiratory viral infection like covid-19—is much more active in the winter. Last year in the US, there were 40 times as many flu cases in the fall and winter months as in the previous spring and summer. Historically, those cooler months see tens of times as many seasonal flu infections in temperate regions.

The other is that the death toll from the 1918 influenza outbreak—the only pandemic to have killed more Americans than this one so far, and one of the deadliest in global history—was five times as high in the US during the late fall and winter as during the summer….Read more

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