Nature highlights

Key research and analysis from this week's Nature magazine.

• Sleeping sickness: The masked trypanosome
  
• High-temperature superconductivity: Fermi conclusion
• Vaccines: The price of imperfection
• Measles: Catch a wave
• Smallpox: Something in the city
• Space physics: Super string
• Biomaterials: Boning up
• Echolocation: Hear here

13 December 2001 table of contents