Biomaterial Database

Epidemiology of a herpesvirus of turkeys: possible sources and spread of infection in turkey flocks. 1971

R L Witter, and J J Solomon

Parameters of turkey herpesvirus (HVT) infection were followed sequentially from hatching through 20 weeks in two commercial turkey flocks. Maternal antibody was uniformly present at hatching but decreased below detectable levels by the 3rd week. Virus was first isolated at the 5th and 6th weeks and thereafter spread rapidly within the flocks. Development of active antibody followed that of viremia by 1 week. Both virus and antibody were present in virtually all turkeys after the 7th or 10th week; however, the incidence of tumors was negligible. Dust and litter from infected flocks were negative for HVT by poult bioassay, but the infection was easily transmitted by exposure of poults to dirty isolation cages or air from HVT-infected turkeys. Attempts to demonstrate congenital transmission of HVT by direct virus isolation from embryos of infected breeders or by isolation rearing procedures were unsuccessful.

UI	MeSH Term	Description	Entries
D011201	Poultry Diseases	Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild.	Disease, Poultry,Diseases, Poultry,Poultry Disease
D004196	Disease Outbreaks	Sudden increase in the incidence of a disease. The concept includes EPIDEMICS and PANDEMICS.	Outbreaks,Infectious Disease Outbreaks,Disease Outbreak,Disease Outbreak, Infectious,Disease Outbreaks, Infectious,Infectious Disease Outbreak,Outbreak, Disease,Outbreak, Infectious Disease,Outbreaks, Disease,Outbreaks, Infectious Disease
D005455	Fluorescent Antibody Technique	Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.	Antinuclear Antibody Test, Fluorescent,Coon's Technique,Fluorescent Antinuclear Antibody Test,Fluorescent Protein Tracing,Immunofluorescence Technique,Coon's Technic,Fluorescent Antibody Technic,Immunofluorescence,Immunofluorescence Technic,Antibody Technic, Fluorescent,Antibody Technics, Fluorescent,Antibody Technique, Fluorescent,Antibody Techniques, Fluorescent,Coon Technic,Coon Technique,Coons Technic,Coons Technique,Fluorescent Antibody Technics,Fluorescent Antibody Techniques,Fluorescent Protein Tracings,Immunofluorescence Technics,Immunofluorescence Techniques,Protein Tracing, Fluorescent,Protein Tracings, Fluorescent,Technic, Coon's,Technic, Fluorescent Antibody,Technic, Immunofluorescence,Technics, Fluorescent Antibody,Technics, Immunofluorescence,Technique, Coon's,Technique, Fluorescent Antibody,Technique, Immunofluorescence,Techniques, Fluorescent Antibody,Techniques, Immunofluorescence,Tracing, Fluorescent Protein,Tracings, Fluorescent Protein
D006564	Herpesviridae	A family of enveloped, linear, double-stranded DNA viruses infecting a wide variety of animals. Subfamilies, based on biological characteristics, include: ALPHAHERPESVIRINAE; BETAHERPESVIRINAE; and GAMMAHERPESVIRINAE.	Mouse Thymic Virus,Murid herpesvirus 3,Thymic Group Viruses,Herpesviruses,Mouse Thymic Viruses,Thymic Virus, Mouse,Thymic Viruses, Mouse
D006566	Herpesviridae Infections	Virus diseases caused by the HERPESVIRIDAE.	Herpesvirus Infections,B Virus Infection,Infections, Herpesviridae,Infections, Herpesvirus,B Virus Infections,Herpesviridae Infection,Herpesvirus Infection,Infection, B Virus,Infection, Herpesviridae,Infection, Herpesvirus,Infections, B Virus
D006799	Housing, Animal	The physical environment in which animals are maintained.	Animal Housing
D000391	Air Microbiology	The presence of bacteria, viruses, and fungi in the air. This term is not restricted to pathogenic organisms.	Microbiology, Air
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000914	Antibodies, Viral	Immunoglobulins produced in response to VIRAL ANTIGENS.	Viral Antibodies
D000956	Antigens, Viral	Substances elaborated by viruses that have antigenic activity.	Viral Antigen,Viral Antigens,Antigen, Viral