The study deals with the 'sanitary enlightenment' at the turn of 18th and 19th centuries. It stresses the role of the 'mediators' as teachers and priests (both catholic and - namely - protestant).
The study analyzes selected publications dedicated to the 'medicine of the poor' that emerged in the milieu of protestant intellectuals. A particular attention is paid to the role of the Prague university professor A.
Zarda that held a special 'first help' courses for lay public, especially for priests.