General properties of viruses

1. For all representatives kingdom Vira is characteristic the presence of the following main signs:

• lack of cellular buildings;

• the presence of only one type of nucleic acid;

• the presence of a protein-synthesizing system;

• disjunctive type reproductions;

• the presence of a nucleoid.

2. Material intended for virological research preliminarily necessary:

• treat with a solution of alkali;

• treat with antibiotics;

• warm up at a temperature 80 ° C for 20 min;

• centrifuged.

9. Microscopy must be used to take into account the results of the following serological reactions:

a) ELISA;

• ELISA;

• NRCE; neutralization reaction with the cytopathic effect of plaque formation in cell culture.

• HIR; Hemagglutination Inhibition Reaction

• CFR; complement fixation reaction,

• IFR; Immunofluorescence Reaction

To identify viruses, you can use:

• HIR; Hemagglutination Inhibition Reaction

• color test of Salk;

• IFR; Immunofluorescence Reaction

• RIT; reaction immobilization of treponema

• neutralization reaction

For the simple structure of the virus characterized by the presence of:

• capsid;

• supercapsid;

• capsomeres

• peplomer.

For the difficult structure of the viruses characterized by the presence of:

• capsid;

• supercapsid;

• capsomeres;

• peplomer.

The capsid consists from morphological subunits which are:

• polypeptides;

• capsomeres;

• polysaccharides;

• ash sensors.

The classification of viruses is based on the following categories:

• type of nucleic acid;

• the size and morphology of virions;

• tinctorial properties;

• the presence of supercapsid;

• antigenic properties.

The main types of cell cultures are:

• primary;

• secondary;

• semi-transferable;

• transferable.

Human leukocyte interferon is used for:

• diagnosis of viral infections

• level determination natural resistance in indirect hemagglutination reaction

• treatment and emergency prevention of viral infections.