Andry, N.  An Account of the Breeding of Worms in Human Bodies (1701).

The first medical text on parasitology is an exhaustive study of the parasites of man, diseases associated with them and their treatment.  Andry's views were way ahead of their time.  Unlike most of his contemporaries, he did not believe in the spontaneous generation of parasites but clearly stated that their seeds entered the body from outside sources and that some foods were particularly likely to contain them.  The selected portions of text contain one of Andry's statements about the "seeds" entering the body and also an account of the tape worm.  This book is the first English translation of the 1700 French original.

(Source:  Garrison & Morton)