Challenge studies in chickens to evaluate the efficacy of commercial Newcastle disease vaccines against the strains of Newcastle disease virus prevalent in South Africa since 2002
Since 2002, the South African poultry industry has experienced outbreaks of Newcastle disease (ND) caused by a newly introduced virus (NDV) strain belonging to lineage 5d/VIId (“goose paramyxovirus” - GPMV). Control of the disease has proved difficult with commercially available vaccines appearing i...
Internet
http://hdl.handle.net/2263/22859Bwala, DG 2009, Challenge studies in chickens to evaluate the efficacy of commercial Newcastle disease vaccines against the strains of Newcastle disease virus prevalent in South Africa since 2002, MSc (Veterinary Science) dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/22859 >
http://upetd.up.ac.za/thesis/available/etd-02262010-123322/