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A suite of News Features, Comment pieces and research papers in this issue focuses on vaccines and vaccination. In a Perspective , Rino Rappuoli and Alan Aderem present a vision for 2020, by which time rationally designed vaccines should be capable of tackling the triple problem of HIV/AIDS, malaria and tuberculosis. In Comment, Julie Leask asks how a greater acceptance of vaccination can be achieved in developed societies (page 443), and Heidi Larson and Isaac Ghinai outline the lessons to be learned from the long battle against polio in the developing world (page 446). In News Features, Roberta Kwok examines recent vaccine safety problems (page 436) and Corie Lok profiles immunologist Bruce Walker and his attempts to overhaul the field of HIV vaccines (page 439). Cover illustration: Serge Bloch.
What makes a queen honeybee? The proposal of a definitive answer to this long-standing question offers much royal food for thought for those studying the evolution of social traits and insect genomes. See Article p.478
X-rays were discovered more than 100 years ago. They have since become a staple tool for medicine and science, so researchers are continuing their efforts to find innovative ways to produce them.
Developing AIDS vaccines has been a frustrating business. A vaccine that triggers immune responses that effectively control early infection by the simian counterpart of HIV in macaques seems promising. See Letter p.523
The synthesis of conolidine, a scarce, naturally occurring compound, has enabled the first studies of its pharmacological properties to be carried out. Excitingly, conolidine is a painkiller that seems to have an unusual mechanism of action.
One might think that physicists know everything about the electron. But the latest measurement of its shape could alter expectations for results at high-energy particle accelerators. See Letter p.493
It seems that Mars had grown to near its present size by 2 million to 4 million years after the Solar System began to form. Such rapid growth explains why the planet is much smaller than Earth and Venus. See Letter p.489
An innovative marriage of techniques, combining the principles of common protein pull-down assays with single-molecule fluorescence microscopy, opens up new ways of visualizing cellular protein complexes. See Article p.484