Phages that replicate only via the lytic cycle are known as virulent phages while phages that replicate using both lytic and lysogenic cycles are known as temperate phages.
Virulent (virtulent) phages multiply by first attaching itself to a host cell and then absorbing it. Next, it injects its own DNA and the host eventually bursts and more phages present.
In virology, temperate refers to the life cycle some phages are able to perform. Atemperate phage can integrate its genome into its host bacterium's chromosome, becoming a lysogen known as a prophage. A temperate phage is also able to undergo lytic life cycles, where the prophage is expressed, replicates the phage genome and produces phage progeny and the progeny phage leave the bacterium. The virulent phages have only lytic lifecycles and thus infection results in the host cell's death (due to lytic cell destruction-the phage replicates itself and then bursts the cell, releasing many copies).
Phages - EP - was created in 2006.
It can be.in this way we can obtain new phages thah share genes of bpth phages.
Temperate Phages
First I'll answer what a bacteriophage is. A bacteriophage is a type of virus that infects a bacterium. These phages can be either virulent or temperate. Virulent phages are capable of infecting and even killing the bacterium it has infected. Temperate phages usually do not cause harm. Its DNA is incorporated into the bacterium's DNA creating what is called a prophage. I don't really know what you are looking for when it comes to "harmless". A harmless phage is one that either only infects a specific bacteria and not the cells of say a human. This is called phage therapy. It is used for bacterial infections in human. The phages kill the bacteria but doesn't infect the human cells. It used to be big in the former Soviet Union but has kind of fell off. I do believe that it is starting to pick up momentum again however. The second thing i guess a harmless phage would mean is the temperate phage that does not harm the bacteria it has infected. If this is what you are looking for, google temperate phage or prophage. You should be able to find the info you need/.
this bacteria is virulent strain
Virulent means very posinous or dangerous.
virulent
he came down with a virulent type of disease
Smallpox is a virulent disease.