Newcastle disease (ND) is a major threat to poultry industry production throughout developing countries. The Newcastle disease viruses (NDVs) infecting industrialized and indigenous poultry in Iran are velogenic strains and responsible for the frequent outbreaks of ND in poultry farms even in vaccinated flocks causing serious economic losses in the commercial and indigenous poultry. However, va...

WHO SAGE, Department of Health Statistics and Information Systems, World Health Organization, Geneva, Switzerland, University of Newcastle Research Centre on Gender, Health and Ageing, Newcastle, Australia, Department of Community Health, University of Ghana Medical School, Korle Bu, Accra, Ghana, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China, Center for Research...

background and aims: newcastle disease virus (ndv) is an avian paramyxovirus (a-pmv 1) and one of the major pathogens in poultries. vaccination is intended to control the disease, nevertheless this virus is a growing threat to the poultry industry. so, early detection of the virus can prevent the spread of illness and avoid huge economic losses. towards this goal, in this research, we developed...

This paper considers the potential problems that may militate against the adoption of organic poultry production in Nigeria. Factors identified include: higher risk of diseases like coccidiosis and Newcastle disease, disease prevention and control / herd health management, disease containment in times of outbreak, land acquisition (land tenure system), market economies / cost-benefit ratio, pas...

The use-dilution test for evaluating the effectiveness of disinfectants against bacteria was modified to determine the effectiveness of disinfectants against a group of viruses. Modifications were kept to a minimum to retain the general principles of the test and thereby retain the test's familiarity among testing laboratory personnel. Modifications included the use of a standard allantoic flui...

Avirulent (lentogenic) strains of Newcastle disease virus form plaques on chicken embryo lung monolayers in 48 to 72 h.

Vaccination has an important role in the prevention of ND even though an ideal vaccination program can not be easily given as it would depend on level of challenge in the field, disease control polices in the country, type of birds (broilers or layers), vaccine strain, size of the flock, past performance of vaccination programs etc. However, the vaccination in the hatcheries has been used throu...

Among the consequences of the epidemic of highly pathogenic avian influenza which affected Italy between 1999 and 2000 was an epidemic of Newcastle disease in northern and central Italy. It affected industrially reared poultry, dealer flocks and backyard flocks, with a total of 254 outbreaks notified up to December 31, 2000. Virological investigations yielded virulent isolates of Newcastle dise...

Prolonged treatment with relatively high concentrations of interferon was required to "cure" L cells persistently infected with Newcastle disease virus.