Microbial Disease reflects the availability of the third-generation cephalosporins, as well as single second-generation cephalosporin, which have a role in the therapy of central nervous system infections. The important contribution made possible by metronidazole in anaerobic therapy is discussed as well as the brood spectrum anthelminthic praziquantel in the treatment of cysticerosis. Also included are chapters on diseases that were unknown ten years ago, such as the neurological complications of Lyme disease, Kawasaki's disease, the toxic shock syndrome, and the neurological complications of immunization.