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Health & MedicineThe Vaccinia Dilemma
To inform the current debate on who should be vaccinated for smallpox given the possibility of—or in the event of—a bioterrorism attack, researchers are using mathematical models and data from vaccination campaigns and past smallpox outbreaks.
By Ben Harder -
TechBuilding a Better Shuttle
Researchers are working on both more heat-tolerant materials and totally new designs for vehicles that might ultimately replace the space shuttle.
By Ron Cowen -
After West Nile Virus
As biologists try to estimate the impact of West Nile virus on wildlife, it's not the famously susceptible crows that are causing alarm but much rarer species.
By Susan Milius -
ComputingPictures Only a Computer Could Love
New, unconventional lenses shape scenes into pictures for computers, not people, so that computer-equipped microscopes, cameras, and other optical devices can see more with less.