Oral Vaccines and Immunization by Other Unusual Routes.

This book is a compilation of research on vaccines, toxoids, toxins and antitoxins used by other than parenteral routes. Approximately 1,172 papers have been abstracted briefly as to results on animals and human beings. About one third of the book is devoted to oral use of BCG, owing to the large amount of research on this subject. All the common bacteria and diseases on which immunization has been attempted are covered. It seems to the reviewer that some of the conclusions drawn by the authors may have been influenced by the fact that the laboratory apparently manufactures vaccine commercially for physicians. In the chapter on oral immunization against colds and influenza, there is the following statement:

Our oral vaccine is used by a considerable number of medical practitioners in Britain, and quite a number of unsolicited letters have been received expressing satisfaction with the results of this vaccine.

The value