Viscerotropic velogenic Newcastle disease in turkeys: immune response following vaccination with either viable B1 strain or inactivated vaccine.
When used as a vaccine, live letogenic B1 Newcastle disease virus (NDV) protects turkeys against challenge-exposure to viscerotropic velogenic NDV (VVNDV). Low-level passively-immune poults were vaccinated one, two, or three times at various intervals and their immunity challenged at various times from 1 to 10 months of age. Newcastle disease virus was isolated readily from either the blood, trachea, or vent of turkeys in all challenge groups (through 5 months of age) on the 3rd to 6th days postchallenge (PC) but after 14 days PC was isolated rarely. Virus was isolated from turkeys that had high titers of serum hemagglutination-inhibition antibodies at the time of challenge. The anamnestic antibody response appeared to be stronger in poults that had low antibody titers prior to challenge-exposure to VVNDV. In a small-scale study with an inactivated VVNDV vaccine, vaccinated poults were protected against challenge with the homologous viscerotropic virus. Parallel control studies on the infectivity of viscerotropic NDV for turkeys indicated that resistance to VVNDV increased with age.
Responses of Turkey Hens Inoculated with a Mesogenic Strain of Newcastle Disease Virus
In contrast to the abundant literature covering almost every phase of Newcastle disease (ND) in chickens, published work on the effects of ND in turkeys is meager, and often limited to descriptions of clinical manifestations of the disease in this species (4,5,6,7,8,10,14,15), with identification of the causal agent. In 1949, Rached (11) reported on an exhaustive study of the serologic responses, as correlated with immunity in 7 turkeys vaccinated with a formalin-inactivated ND vaccine. The paucity of experimental evidence published on ND in turkeys is difficult to understand in view of the early recognition of the disease in both chickens and turkeys, and of the millions of turkeys vaccinated annually against ND in California alone. The tempting tendency to extend information on ND obtained in chickens to turkeys (and possibly to other species) and the apparently mild symptomatology present in some turkey flocks infected with ND may be an explanation for the apathy toward experimental work in ND of turkeys. Motivation for the present study originated in part from a desire to know more about the behavior of this species toward a well known disease of chickens, and in part from the necessity to
Judicial Review, Socio-Economic Rights and the Human Rights Act
INTRODUCTION 1 THE ROLE OF COURTS IN THE PROTECTION OF SOCIO-ECONOMIC RIGHTS: INTERNATIONAL AND DOMESTIC PERSPECTIVES I. The Indivisibility of Human Rights II. The Protection of Socio-economic Rights in Domestic Courts III. Conclusion 2 THE REGIONAL PROTECTION OF SOCIO-ECONOMIC RIGHTS: EUROPE I. Introduction II. The European Convention on Human Rights (ECHR) 1950 III. The Protection of Socio-economic Rights in the ECHR IV. The Protection of Socio-economic Rights in EC/EU Law V. Conclusion 3 COURTS, THE UK CONSTITUTION AND THE HUMAN RIGHTS ACT 1998 I. Introduction II. Reading and Giving Effect to ECHR Rights in UK Courts III. Conclusion 4 JUDICIAL REVIEW: DEFERENCE, RESOURCES AND THE HUMAN RIGHTS ACT I. Introduction II. The Constitutional Foundations of Judicial Review III. Public Law, Deference and the Human Rights Act IV. Conclusion 5 FROM NEED TO 'CHOICE' IN PUBLIC SERVICES: THE BOUNDARIES OF JUDICIAL INTERVENTION IN PRIORITISATION DISPUTES I. Introduction II. NHS Rationing: The Role of Courts in Disputes over Access to Medical Services III. Local Authority Resource Allocation Disputes IV. Interpreting Local Authority Statutory Duties Post-HRA V. Conclusion 6 ARTICLES 3 AND 8 ECHR: FAILURE TO PROVIDE AND POSITIVE OBLIGATIONS IN THE SOCIO-ECONOMIC SPHERE I. Introduction II. Anufrijeva, Article 8 ECHR and Maladministration in the Provision of Welfare III. Article 3 ECHR: Respect for Dignity IV. Conclusion 7 ARTICLE 14 ECHR AND THE UNEQUAL DISTRIBUTION OF PUBLIC GOODS AND SERVICES IN THE UNITED KINGDOM I. Introduction II. Socio-economic Entitlements and the Limits of Substantive Fairness in Article 14 ECHR III. Carson's Case: Refusal of Up-rated Payments to Pensioners Abroad 283 IV. Reynolds' Case: The Intensity of Scrutiny in Other 'Status Disputes' V. Equality and Human Rights VI. Conclusion 8 ARTICLE 6 ECHR: JUDICIAL REVIEW, DUE PROCESS AND THE PROTECTION OF SOCIO-ECONOMIC RIGHTS I. Introduction II. What is a Civil Right for the Purposes of Article 6 ECHR? III. The Quality of Administrative Justice: The Scope of Article IV. Conclusion