Veterinary vaccinology

Veterinary vaccinology is a very interesting and rapidly developing field. In fact veterinary vaccines are not only used for the prevention of infecti ous diseases in the animal health sector, but also help to solve problems o f public health, to reduce detrimental environmental impact of the use of s ome veterinary drugs and prevent the emergence of resistance of micro-organ isms or parasites. After a short introduction, this paper will deal with th e use of vaccines for animal health and welfare, including new developments in the veterinary field such as marker vaccines and vectored vaccines, the special case of equine influenza-inactivated vaccines and the use of veter inary vaccines in public health. The conclusions will analyse the reasons a s to why develop veterinary vaccines and the obstacles to their development . (C) 1999 Academie des sciences/Editions scientifiques et medicales Elsevi er SAS.