TY - JOUR
T1 - Bulk milk testing for antibody seroprevalences to BVDV and BHV-1 in a rural region of Peru
AU - Ståhl, Karl
AU - Rivera, H.
AU - Vågsholm, I.
AU - Moreno-López, J.
PY - 2002/12/30
Y1 - 2002/12/30
N2 - Bulk milk from 60 herds of dairy cattle in a rural region in the central highlands of Peru was tested for antibodies to bovine viral-diarrhoea virus (BVDV) and bovine herpesvirus type 1 (BHV-1). None of the herds had been vaccinated against BVDV or BHV-1. Commercially available indirect ELISA-kits were used for antibody detection. True prevalences of BVDV and BHV-1 antibody-positive herds were 96 and 51%, respectively. A relatively low proportion of strongly positive herds suggests, however, a low prevalence of active BVDV infection. BVDV optical densities (ODs) in bulk milk increased with herd size - indicating a higher within-herd prevalence in the larger herds (probably, in part a consequence of a higher rate of animal movement into these herds). For BHV-1, this pattern was not found; a relatively high proportion of the herds was free from BHV-1 infection in each size category. This could indicate a low rate of reactivation of latent BHV-1 infection. © 2002 Elsevier Science B.V. All rights reserved.
AB - Bulk milk from 60 herds of dairy cattle in a rural region in the central highlands of Peru was tested for antibodies to bovine viral-diarrhoea virus (BVDV) and bovine herpesvirus type 1 (BHV-1). None of the herds had been vaccinated against BVDV or BHV-1. Commercially available indirect ELISA-kits were used for antibody detection. True prevalences of BVDV and BHV-1 antibody-positive herds were 96 and 51%, respectively. A relatively low proportion of strongly positive herds suggests, however, a low prevalence of active BVDV infection. BVDV optical densities (ODs) in bulk milk increased with herd size - indicating a higher within-herd prevalence in the larger herds (probably, in part a consequence of a higher rate of animal movement into these herds). For BHV-1, this pattern was not found; a relatively high proportion of the herds was free from BHV-1 infection in each size category. This could indicate a low rate of reactivation of latent BHV-1 infection. © 2002 Elsevier Science B.V. All rights reserved.
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U2 - 10.1016/S0167-5877(02)00161-7
DO - 10.1016/S0167-5877(02)00161-7
M3 - Article
SN - 0167-5877
SP - 193
EP - 202
JO - Preventive Veterinary Medicine
JF - Preventive Veterinary Medicine
ER -
