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Teens play foosball at a youth center run by the Desmond Tutu HIV Foundation near Cape Town, South Africa. A new report says HIV/AIDS prevention and treatment programs often fail to reach boys. Photo: Jason Kane/PBS NewsHour

For World AIDS Day, an urgent call for more attention to men and boys

Friday is World AIDS Day, and pronouncements once again are making proud declarations of the many strides made against HIV in the past year. But…

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Eva Harris (far right) has led a dengue study in Nicaragua that for more than 12 years has regularly taken blood samples from children. Alejandro Belli/PLOS Pathogens

New evidence that dengue antibodies trigger life-threatening infections

It’s a disease theory fit for a spy novel: Protective antibodies can turn double agent, teaming up with the dengue virus to make an infection…

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Variations of the CRISPR DNA editor can change one DNA base into another. Shaury Nash/Flickr (CC BY SA 2.0)

Novel CRISPR-derived ‘base editors’ surgically alter DNA or RNA, offering new ways to fix mutations

Since the start of the CRISPR craze 5 years ago, scientists have raced to invent ever-more-versatile or efficient variations of this powerful tool, which vastly…

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Americans have conflicting views on how technologies that allow human genome editing, such as one that uses the Cas9 enzyme to snip DNA, should be employed. Meletios/shutterstock

Americans are becoming more open to human genome editing, survey finds, but concerns remain

CRISPR, the powerful genome-editing tool, does a molecular tango to cut and modify DNA that is highly nuanced. The same subtlety applies to the public’s…

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