What are Vampire Viruses?

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About Vampire Viruses

They are pathogens that latch onto other viruses in order to replicate themselves.
They emerge when a bacteriophage attaches to a soil-based virus, utilising its “life” for independent survival.
This viral relationship between two pathogens is called a satellite and a helper.
The satellite is the infectious strand that relies on the helper for support through its life cycle.
Satellites depend on both their host organism and helper virus to complete its life cycle.
The satellite virus depends on the helper virus to build the protective shell that covers its genetic material, called a capsid or to help it replicate its DNA.
Most satellite viruses contain a gene that allows them to integrate into the host cell’s genetic material after they enter the cell.
This enables the satellite to reproduce whenever a helper enters the cell from then on.
The host cell also copies the satellite’s DNA and its own when it divides.

What is a Bacteriophage?

Bacteriophages (BPs) are viruses that can infect and kill bacteria without any negative effect on human or animal cells.
For this reason, it is supposed that they can be used, alone or in combination with antibiotics, to treat bacterial infections.
They are comprised of a protein capsule around an RNA or DNA genome.
The bacteriophage structure may include various features for infecting the host cell. Many bacteriophages have a central shaft and leglike appendages.
The legs attach to the bacteria, and genetic material is injected through the shaft into the host cell cytoplasm, where it replicates and reassembles into progeny.
Thousands of varieties of phages exist, each of which may infect only one type or a few types of bacteria or archaea.

Q1) What is a Virus?

A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat. A virus cannot replicate alone; instead, it must infect cells and use components of the host cell to make copies of itself. Often, a virus ends up killing the host cell in the process, causing damage to the host organism. Well-known examples of viruses causing human disease include AIDS, COVID-19, measles and smallpox.