Killer Silk

Silk impregnated with bleach may provide a new way to fight the formidable spores of the anthrax bacterium.

Written byJef Akst
| 4 min read

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ANTHRAX: A cluster of anthrax bacteria (Bacillus anthracis) in the lung PHOTO RESEARCHERS, CAMR/A BARRY DOWSET

In mid-September 2001, as the dust was still settling at Ground Zero in Lower Manhattan, several news media offices and two US Senators received letters containing spores of the lethal bacterium Bacillus anthracis. Five people died, and 17 others were infected.

“The anthrax attack of 2001 was unprecedented in US history,” the US Environmental Protection Agency (EPA) wrote in an e-mail to The Scientist. “It was the first use of biological weapons on US soil in modern history.”

The cleanup following these attacks was similarly unprecedented, the agency noted. “[The] EPA had decades of experience conducting emergency responses to hazardous materials and oil spills, but had never responded to a biological weapon such as the preparation used in this attack.” After conferring with the Defense ...

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  • Jef (an unusual nickname for Jennifer) got her master’s degree from Indiana University in April 2009 studying the mating behavior of seahorses. After four years of diving off the Gulf Coast of Tampa and performing behavioral experiments at the Tennessee Aquarium in Chattanooga, she left research to pursue a career in science writing. As The Scientist's managing editor, Jef edited features and oversaw the production of the TS Digest and quarterly print magazine. In 2022, her feature on uterus transplantation earned first place in the trade category of the Awards for Excellence in Health Care Journalism. She is a member of the National Association of Science Writers.

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