Skip to main content
Vai all'homepage della Commissione europea (si apre in una nuova finestra)
italiano italiano
CORDIS - Risultati della ricerca dell’UE
CORDIS
Contenuto archiviato il 2024-04-15

POTENTIAL RISKS LINKED TO THE USE OF MODIFIED LIVE VIRUSES FOR ANTIRABIES VACCINATION OF FOXES

Obiettivo


Trials were performed using the V-RG(B+C) and SAG1(A+B) vaccines. No clinical signs or lesions were recorded in any of the inoculated foxes during, 1, 6, 12 and 18 months after vaccination. The absence of pathogenicity was observed whatever the dose inoculated or route of administration. The absence of pathogenicity of V-RG administered by the oral route also has been demonstrated in laboratory and domestic animals. Moreover, V-RG innocuity was tested in several wild animal species. Several species of predatory or scavenger birds, carnivores, rodents and hoofed mammals. Postmortem examination did not result in the detection of lesions. During a minimum of 28 days postvaccination, neither clinical signs were observed in any of vaccinated animals. Sero conversion has never been observed in unvaccinated controls held in close contact with V-RG vaccinated ones (red fox, dog, cat, cattle, ferret, badger and wild boar). Several laboratory techniques failed to detect any virus in the saliva, salivary glands, the blood and internal organs of freshly inoculated foxes. The method of polymerase chain reaction could detect the V-RG virus at very low levels in tonsils, buccal mucosa and soft palate only. Finally, the genetic stability of this recombinant virus could be attested after serial passages in vitro (cell lines) as well as in vivo (red fox, laboratory mouse). Stability of the SAG1 was assessed as absolute in cell culture. But attenuation results from a single mutation and is then subjected to reversion (as it was seen in wild vole after one intracerebral passage). Most likely the revertant will not induce rabies, because its multiplication will be restricted by the development of the immune response. It will then remain trapped in the vaccine and will disappear with him. An experimental study has shown that early or late death phenomenon, as consequences of interactions between oral vaccination with V-RG and rabies infection, is likely to impede the creation of asymptom atic carriers of rabies virus.

Programma(i)

Programmi di finanziamento pluriennali che definiscono le priorità dell’UE in materia di ricerca e innovazione.

Argomento(i)

Gli inviti a presentare proposte sono suddivisi per argomenti. Un argomento definisce un’area o un tema specifico per il quale i candidati possono presentare proposte. La descrizione di un argomento comprende il suo ambito specifico e l’impatto previsto del progetto finanziato.

Dati non disponibili

Invito a presentare proposte

Procedura per invitare i candidati a presentare proposte di progetti, con l’obiettivo di ricevere finanziamenti dall’UE.

Dati non disponibili

Meccanismo di finanziamento

Meccanismo di finanziamento (o «Tipo di azione») all’interno di un programma con caratteristiche comuni. Specifica: l’ambito di ciò che viene finanziato; il tasso di rimborso; i criteri di valutazione specifici per qualificarsi per il finanziamento; l’uso di forme semplificate di costi come gli importi forfettari.

CSC - Cost-sharing contracts

Coordinatore

UNIVERSITÉ DE LIEGE
Contributo UE
Nessun dato
Indirizzo
Place du XX Août 7
LIEGE
Belgio

Mostra sulla mappa

Costo totale

I costi totali sostenuti dall’organizzazione per partecipare al progetto, compresi i costi diretti e indiretti. Questo importo è un sottoinsieme del bilancio complessivo del progetto.

Nessun dato
Il mio fascicolo 0 0