Salmonella infections:immune and non-immune protection with vaccines - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Avian Pathology Année : 2007

Salmonella infections:immune and non-immune protection with vaccines

Résumé

Salmonella enterica in poultry remains a major political issue. S. serovar Enteritidis, particularly, remains a world-wide problem. Control in poultry by immunity, whether acquired or innate, is a possible means of containing the problem. Widespread usage of antibiotics has led to the emergence of multiple antibiotic resistant bacteria. This problem has indicated an increasing requirement for effective vaccines to control this important zoonotic infection. An attempt is made in this review to explain the relatively poor success in immunising food animals against these non-host-specific Salmonella serotypes that usually produce food-poisoning, compared with the success obtained with the small number of serotypes that more typically produce systemic "typhoid-like" diseases. New examinations of old problems such as the carrier state and vertical transmission, observed with S. Pullorum, is generating new information of relevance to immunity. Newer methods of attenuation are being developed. Live vaccines, if administered orally demonstrate non-specific and rapid protection against infection which is of biological and practical interest. However, from the point of view of consumer safety, there is a school of thought that considers inactivated or sub-unit vaccines to be the safest. The benefits of developing effective killed or sub-unit vaccines over the use of live vaccines are enormous. Recently there have been significant advances in the development of adjuvants, for example microspheres, that are capable of potent immuno-stimulation, targeting different arms of the immune system. The exploitation of such technology in conjunction with the ongoing developments in identifying key Salmonella virulence determinants should form the next generation of Salmonella sub-unit vaccines for the control of this important group of pathogens. There are additional areas of concern associated with the use of live vaccines, particularly if these are generated by genetic manipulation.

Mots clés

Fichier principal
Vignette du fichier
PEER_stage2_10.1080%2F03079450601113167.pdf (262.9 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00540065 , version 1 (26-11-2010)

Identifiants

Citer

Paul Barrow. Salmonella infections:immune and non-immune protection with vaccines. Avian Pathology, 2007, 36 (01), pp.1-13. ⟨10.1080/03079450601113167⟩. ⟨hal-00540065⟩

Collections

PEER
28 Consultations
448 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More