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For a health segment on longevity, NBC's Today show spoke with researchers at Spectracell Laboratories, the only lab in the US that currently offers a test to assess one's telomere length. "Telomeres are structures on the tips of chromosomes that shorten as people age. Think of them like the plastic tips on a shoestring; people with shorter telomeres are more likely to develop illnesses and die earlier," NBC Chief Medical Editor Nancy Snyderman says.

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The Washington Post reports that Herbert Tabor, who worked at the US National Institutes of Health for 77 years, has died at 101.

The World Bank is seeking approval for a $12 billion plan to provide low-income nations with funds to procure SARS-CoV-2 vaccines, according to Reuters.

Science writes that public health officials and others are debating whether cycle threshold values should be included on SARS-CoV-2 results.

In Nucleic Acids Research this week: online database of SARS-CoV-2 protein structures, atlas of the human brain, and more.