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Inspired

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California high school student Angela Zhang has won a $100,000 scholarship for her research on improving cancer treatment delivery systems, reports the Associated Press' Jessica Gresko. Zhang, who was competing in the Siemens Foundation's annual high school science competition, created what she calls "a Swiss army knife of cancer treatments." The molecule she designed delivers a drug directly to a tumor cell while sparing surrounding healthy cells, Gresko says. The particle then releases its pharmaceutical cargo when hit with a specialized laser. Six individuals and six teams competed for the top prize, Gresko says. Zhang was the only female individual finalist, and said her research was partly inspired by her great grandfather, who had liver cancer, and her grandfather, who died of lung cancer.

The Scan

Booster for At-Risk

The New York Times reports that the US Food and Drug Administration has authorized a third dose of the Pfizer-BioNTech SARS-CoV-2 vaccine for people over 65 or at increased risk.

Preprints OK to Mention Again

Nature News reports the Australian Research Council has changed its new policy and now allows preprints to be cited in grant applications.

Hundreds of Millions More to Share

The US plans to purchase and donate 500 million additional SARS-CoV-2 vaccine doses, according to the Washington Post.

Nature Papers Examine Molecular Program Differences Influencing Neural Cells, Population History of Polynesia

In Nature this week: changes in molecular program during embryonic development leads to different neural cell types, and more.