Pathogenicity of antigenic variants of Newcastle disease virus Italian strain selected with monoclonal antibodies. 1987

G Meulemans, and M Gonze, and M C Carlier, and P Petit, and A Burny, and L E Long
National Institute for Veterinary Research, Brussels, Belgium.

Antigenic variants of the Italian strain of NDV were selected using monoclonal antibodies directed against the HN and F proteins of Italian virus. Antigenic mapping of the HN and F proteins using variant viruses in cross neutralization tests revealed the presence of at least two different epitopes on HN and four epitopes on F protein. Immunoselected variant viruses were demonstrated to have different intravenous pathogenicity index than the parental Italian virus.

UI MeSH Term Description Entries
D009522 Newcastle disease virus The most well known avian paramyxovirus in the genus AVULAVIRUS and the cause of a highly infectious pneumoencephalitis in fowl. It is also reported to cause CONJUNCTIVITIS in humans. Transmission is by droplet inhalation or ingestion of contaminated water or food. Avian Paramyxovirus 1,Paramyxovirus 1, Avian
D006389 Hemagglutinins, Viral Specific hemagglutinin subtypes encoded by VIRUSES. Viral Hemagglutinin,Viral Hemagglutinins,Hemagglutinin, Viral
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D000939 Epitopes Sites on an antigen that interact with specific antibodies. Antigenic Determinant,Antigenic Determinants,Antigenic Specificity,Epitope,Determinant, Antigenic,Determinants, Antigenic,Specificity, Antigenic
D000940 Antigenic Variation Change in the surface ANTIGEN of a microorganism. There are two different types. One is a phenomenon, especially associated with INFLUENZA VIRUSES, where they undergo spontaneous variation both as slow antigenic drift and sudden emergence of new strains (antigenic shift). The second type is when certain PARASITES, especially trypanosomes, PLASMODIUM, and BORRELIA, survive the immune response of the host by changing the surface coat (antigen switching). (From Herbert et al., The Dictionary of Immunology, 4th ed) Antigen Switching,Antigenic Diversity,Variation, Antigenic,Antigen Variation,Antigenic Switching,Antigenic Variability,Switching, Antigenic,Diversity, Antigenic,Switching, Antigen,Variability, Antigenic,Variation, Antigen
D014760 Viral Fusion Proteins Proteins, usually glycoproteins, found in the viral envelopes of a variety of viruses. They promote cell membrane fusion and thereby may function in the uptake of the virus by cells. Fusion Proteins, Viral,Viral Fusion Glycoproteins,F Protein (Sendai Virus),F Protein Measles Virus,F Protein Newcastle Disease Virus,F Protein SV,F-Glycoprotein SV,F1 Polypeptide (Paramyxovirus),Fusion Glycoprotein, Viral,Fusion VP1 Protein,Glycoprotein, Viral Fusion,Measles Fusion Protein,Mumps Virus Fusion Protein,Paramyxovirus Fusion Protein,Sendai Virus Fusion Protein,Viral Fusion-GP,Virus Fusion Proteins,Fusion Glycoproteins, Viral,Fusion Protein, Measles,Fusion Protein, Paramyxovirus,Fusion Proteins, Virus,Fusion-GP, Viral,Glycoproteins, Viral Fusion,Proteins, Virus Fusion,VP1 Protein, Fusion,Viral Fusion GP,Viral Fusion Glycoprotein
D014774 Virulence The degree of pathogenicity within a group or species of microorganisms or viruses as indicated by case fatality rates and/or the ability of the organism to invade the tissues of the host. The pathogenic capacity of an organism is determined by its VIRULENCE FACTORS. Pathogenicity

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