Bacteriophage, Phage

Bacteriophage, Phage (Phage) is a bacterial virus that infects a bacterial cell, multiplies in it and often causes its lysis. Typically, a phage consists of a head, which contains one molecule of double-stranded DNA, a tail, and tail fibrils formed by protein molecules. The tail and tail fibrils serve to attach the bacteriophage to the surface of the bacterium and to inject its DNA into the bacterium. The phage's DNA replicates and codes for the synthesis of its coat proteins, causing the phage to multiply within the bacterial cell, which eventually lyses and the phages are released and infect other cells. Each phage acts selectively only against certain types of bacteria. This is used in phage typing - this technique is used to identify bacteria by the effect of known phages on it. See also Lysogeny.

A bacteriophage is a bacterial virus that infects a bacterial cell, multiplies in it and often causes its lysis. Typically, a phage consists of a head, which contains one molecule of double-stranded DNA, a tail, and tail fibrils formed by protein molecules. The tail and tail fibrils serve to attach the bacteriophage to the surface of the bacterium and to inject its DNA into the bacterium. The phage's DNA replicates and codes for the synthesis of its coat proteins, causing the phage to multiply within the bacterial cell, which eventually lyses and the phages are released and infect other cells. Each phage acts selectively only against certain types of bacteria. This is used in phage typing - this technique is used to identify bacteria by the effect of known phages on it.

Bacteriophages are viruses that use bacteria as carriers. They are of two types - tapamatic and lysogenic. If a bacteriophage attaches and enters a cell, this is called the process of lysis. Bacteria, deprived of their own reproduction systems, reproduce only in the presence of bacteriophages, receiving information about this as part of the genome.

Phages are used to treat strains of pathogenic bacteria. They are called "gene suppressors" and suppress a number of properties of microbes, making them vulnerable to an antibiotic or other drug. Since antibiotic resistance also affects the safety of antibiotics, bacteroid phage therapies show benefits. Isolating specific strains of bacteria allows us to select the most effective treatment for the patient.

Bacterial phages can enter the body not only through mucous membranes and skin, but also through airborne droplets. Infection