Nurith Aizenman

When the pandemic first hit, Hitesh Hurkchand had one overriding concern: How do I protect my mother?

Hurkchand lives in Boston. His mother, Thulja, was in South Africa. She was a widow, living at an assisted living facility. And she had diabetes, hypertension, and heart issues.

Thinking about how hard it was going to be to keep Thulja safe, Hurkchand would fall into bouts of despair. "Oh my god, I mean it was like every other day," he recalls.

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ARI SHAPIRO, HOST:

The open market of the coronavirus vaccines has left countries like South Africa in a bind as they try to figure out a way to protect their citizens. NPR's Nurith Aizenman explains.

Ever since the coronavirus reached the U.S., officials and citizens alike have gauged the severity of the spread by tracking one measure in particular: How many new cases are confirmed through testing each day. However, it has been clear all along that this number is an understatement because of testing shortfalls.

Now a research team at Columbia University has built a mathematical model that gives a much more complete — and scary — picture of how much virus is circulating in our communities.

How to make sure the world is never so devastated by another pandemic?

Health officials from around the globe have been vigorously discussing that question over the past week at the annual meeting of the World Health Organization's Executive Board. The members, whose nine-day-long, mostly virtual gathering concludes on Tuesday, have heard recommendations from four separate panels.

Exactly one year ago today, the World Health Organization first learned of a cluster of a few dozen pneumonia cases in Wuhan, China of "unknown" origin. The cause, of course, would turn out to be the coronavirus behind the current pandemic. Here's a by-the-numbers summary of the toll the virus has taken on countries across the globe since that fateful day.

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