Survival of Newcastle Virus in Poultry Farm Environment

Abstract

Despite intensive vaccination programs in many countries, including Egypt, Newcastle disease still being a significant threat to the poultry industry. Bad management for poultry byproducts (e.g. manure) might be a reason for environmental pollution which contaminate the environment either chemically through haphazard usage of medications and or biologically through the massive use of homologous/heterologous vaccines especially the live ones. The aim of the current work is to estimate the survivability time for velogenic Newcastle disease virus (NDV) of genotype VII in poultry manure in compare to LaSota vaccine strain as a model of genotype II.