SERO-SURVEILLANCE AND VACCINE EFFICACYOF PESTE DES PETITS RUMINANTS (PPR) IN SELECTED AREAS OF BANGLADESH

Abstract

The sero-surveillance and vaccine efficacy studies on Peste des Petits Ruminants (PPR) in Black Bengal goats were carried out in the district of Manikgonj during the period from January to September 2014. A total of 160 household farmers from Pouly (treatment village) and Chamta (control village) were interviewed in this study. Sero-surveillance of PPR by using competitive enzyme linked immunosorbent assay (c-ELISA) was conducted on 230 goats which were selected randomly with history of no vaccination earlier against any diseases. The per household goat population was 3.22 and 3.45 in Pouly and Chamta, respectively. Marginal farmer category was highest about 86% and 78.33% in Pouly and Chamta, respectively. Most of the farmers used tin as building material. During the study period 82% in Pouly villagers reared their animals in confined system whereas in Chamta 61.66% farmers reared their animals in free grazing system. In Pouly village only 3% farmers vaccinate their animals. In Chamta village farmers never vaccinate their animals. In Pouly 87% farmers and in Chamta 76.66% farmers preferred to treat their animals by quack. In both villages about 13% farmers treat their animals by self-treatment. In Pouly village 10.20%, 89.47% and 81.63% sero-positive cases were found pre-vaccination, 21 days post vaccination and 180 days post vaccination, respectively. In Chamta village 2.17% sero-positive cases were found in unvaccinated group and 2.08% sero-positive cases were found after 180 days.. Average sero-surveillance was 60.43% and 2.13% in Pouly and Chamta, respectively. Due to vaccination antibody level was high in Pouly but without vaccination it was low in Chamta. Thus proved that PPR vaccine working well in Pouly (treatment village).