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Nepal is a country with variation in topography and diverse climatic zones. Agriculture is a major occupation for majority of Nepalese engaging 66% of total population in farming and Poultry farming is integral part of the agriculture in Nepal. Nepal has long history of traditional poultry keeping. Poultry are the important source of valuable dietary proteins and rural cash income. In recent data, about 72 million chickens and 400 thousand ducks are present which include commercial, small holder and backyard type of farm. Poultry sector is an emerging industry engaging and employing 70,000 people directly contributing about 4% in National GDP. In present days, the traditional poultry farming is replaced by commercial farming. But the challenge and constraints on poultry sector are increasing day by day. Outbreak and spread of emerging infectious disease is headache in poultry farming. Various disease like Avian influenza, Newcastle disease, IBD, IB, ILT, coccidiosis, Avian Mycoplasmosis, Fowl typhoid, Fowl pox etc. cause serious economic loss in poultry industry. Newcastle disease is common and spread throughout the country having higher incidence in the summer which is caused by avian paramyxovirus type-1 of Paramyxoviridae. Vaccines are important tool for prophylactic measures. In many countries, vaccination against ND is routinely practiced for prevention and control of disease and types of vaccines and vaccination schedule vary according to potential threat and virulence property of the field challenge virus. There is big challenge for vaccine researchers, manufacturers and scientists for development of effective vaccine against Newcastle disease. In this paper, we will discuss about present status of Newcastle disease and Vaccine produced in Nepal and Vaccination protocol to prevent spread of Newcastle Disease in Nepal.

Vaccination: A key way to prevent Newcastle disease in poultry of Nepal