Dirty and Dying, but US-Approved?
Problems with contamination and genetic abnormalities may not stop work on embryonic stem cell therapies
Stories by Christine Soares
Repair Workers Within
Adult stem cells may escape the ethical controversies of their embryonic counterparts, but as Christine Soares notes, their practical clinical value is far more murky
Cooping Up Avian Flu
Buying time to arm for a pandemic is possible--maybe
Polio Postponed
Politics slow polio's eradication--and cause it to spread
What's in a Name?
Not much at the moment, thinks biologist Kevin de Queiroz, but names could be made to reflect our modern understanding of life's origins and complexity
Body Building
Growing replacement organs is still a long way off
A Strategy of Containment
Pathogens take windows of opportunity, and so must humans, says David L. Heymann, who helped to create a global early-warning and response network
Caught Off Guard
SARS reveals gaps in global disease defense
Caught Off Guard
SARS reveals gaps in global disease defense
Inner Turmoil
Prescription privileges make some psychologists anxious
