Nurith Aizenman
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The grim news of mass shootings in California has again cast a spotlight on the gun violence death rate in the U.S., which is higher than much of the world.
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For this health expert based in Boston, the effort to get vaccines to his native South Africa was intensely personal.
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New results from a COVID-19 vaccine trial in South Africa suggest the vaccine that was developed by AstraZeneca may not be as effective against the variant found there.
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Not everyone gets tested. A new model estimates how many infections are missed because of this and how many people are actively shedding the virus. The results lend urgency to the vaccine race.
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New research shows how official figures understate the U.S. pandemic: On any given day the number of infected people who are actively contagious is ten times that day's tally of new reported cases.
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Six takeaways from discussions at the annual meeting of the World Health Organization's Executive Board.
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A year ago today, the WHO first learned of a cluster of pneumonia cases in Wuhan, China of "unknown" origin. Here's the impact of that fateful day, by the numbers.
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A new study suggests big sisters have a powerful impact. (Sorry, big brothers, you don't make as much of a difference.) But there are also potential downsides for the sisters.
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A new study suggests kids in poor countries benefit hugely from having older sisters — who are more likely than brothers or even mothers — to engage in stimulating play.
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It's part of an ongoing back-and-forth: Republican presidents ban U.S. funds for foreign aid groups that 'promote' abortion, Democratic presidents revoke the ban. This time things could be different.