The herd seroprevalence of bovine respiratory syncytial virus (BRSV) was studied in 59 dairy cattle herds using serology on random selected animals stratified by two age classes (heifers, cows). Risk factors for primary infections in heifers were investigated using a questionnaire on management conditions and data on bovine viral diarrhoea (BVD) status. At least one seropositive cow was present in all the herds. In 25% of the herds all individual were seropositive and 22% of herds had all heifers seronegative. Analysis of the influence of risk factors retained summer pasture and BVD status. In particular, absence of summer pasture and the BVD positive status of heifers were associated with an increased risk of BRSV infection in heifers group.
Bovine respiratory syncytial virus seroprevalence and risk factors in endemic dairy cattle herds / C. Luzzago, V. Bronzo, S. Salvetti, M. Frigerio, N. Ferrari. - In: VETERINARY RESEARCH COMMUNICATIONS. - ISSN 0165-7380. - 34:1(2010 Jan), pp. 19-24. ((Intervento presentato al 63. convegno Convegno nazionale SISVet tenutosi a Udine nel 2009.
|Titolo:||Bovine respiratory syncytial virus seroprevalence and risk factors in endemic dairy cattle herds|
LUZZAGO, CAMILLA (Primo)
BRONZO, VALERIO (Secondo)
FERRARI, NICOLA (Ultimo)
|Parole Chiave:||Bovine respiratory syncytial virus; Bovine viral diarrhoea; Cattle; Epidemiology; Risk factors; Serology|
|Settore Scientifico Disciplinare:||Settore VET/05 - Malattie Infettive degli Animali Domestici|
|Data di pubblicazione:||gen-2010|
|Enti collegati al convegno:||SISVet|
Società italiana delle scienze veterinarie
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1007/s11259-009-9327-z|
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