This book is one of a series of health-related publications for parents written by members of the staff of the Boston Children's Medical Center. A reference guide for parents seeking information on health, safety, and diseases affecting children, the book discusses specific diseases as well as health problems related to contemporary society. (These latter problems include drug abuse, smoking, television, weight control and learning disabilities among others). The book emphasizes physical rather than psychological problems and is applicable to children from infancy through adolescence. Parts 1 and 2 provide general information on health care and safety applicable to all children. Included in these introductory chapters is a section on First Aid designed for quick reference. Part 3 is an encyclopedia of specific health problems. Each section includes a discussion of symptoms, causes and treatment. Part 3 also includes discussions of general topics such as immunity, viruses and contagiousness. The book is designed to be used by parents in conjunction with regular medical care. (BD)