Observation and survey of health risks are at present major stakes for prev
ention. These principles are topical questions for biological risk and part
icularly zoonoses, because of their constant evolution, their geographical
variability, and their emergence or reemergence. Agricultural occupations a
re especially populations at risk and the occupational physicians and preve
ntion engineers of the Mutualite sociale agricole have been working on that
subject for many years. With this experience, the Mutualite sociale agrico
le has decided to set up a network project for the survey and prevention of
zoonoses, involving many of the specialists of human and animal health con
cerned. (C) 2001 Editions scientifiques et medicales Elsevier SAS.