Bird flu and other viruses may be on the road to extinction. Researchers are developing DNA vaccines that can be produced quickly and cheaply. There are no DNA vaccines available for human use yet, but DNA vaccines have just been approved for use in horses to prevent West Nile Virus. Researchers are currently testing human DNA vaccines for AIDS, SARS, Ebola, and West Nile Virus. “A DNA vaccine is not a panacea,” says University of London biochemist Peter Dunnill. “However, it could be useful if the situation gets out of hand.” The development of novel technologies like DNA vaccines point...