Examples of computer virus

Following Creeper, which was isolated within the realm of researchers, Elk Cloner was the first virus to be detected in the wild. Written in 1982 by a 15-year-old, it was a boot sector virus that infected Apple II computers.

ILOVEYOU

ILOVEYOU is considered one of the most virulent computer virus ever created. It managed to wreck havoc on computer systems all over the world with around $10 billion worth of damages. 10% of the world’s computers were believed to have been infected.

Malware infections can eliminate

Serious viral infections can cause serious illness – or even death. And computer viruses also have the potential to kill. In most cases, computer malware cause data loss, steal personal information and occasionally, cause physical damage to the infected computer.

Von Neumann’s design for a self-reproducing computer program is considered the world’s first computer virus, and he is considered to be the theoretical “father” of computer virology.

Common examples of contagious viral diseases include the flu, the common cold, HIV, and herpes. Other types of viral diseases spread through other means, such as the bite of an infected insect.

9 Common Types of Computer Viruses.

Viruses may have arisen from mobile genetic elements that gained the ability to move between cells. They may be descendants of previously free-living organisms that adapted a parasitic replication strategy. Perhaps viruses existed before, and led to the evolution of, cellular life.

Sugar is one of the most naturally occurring molecules, and all cells in the body are covered by a thick layer of sugar that protects the cells from bacteria and virus attacks. In fact, close to 80 per cent of all viruses and bacteria bind to the sugars on the outside of our cells.

Viruses are not made out of cells. A single virus particle is known as a virion, and is made up of a set of genes bundled within a protective protein shell called a capsid.

Because they can’t reproduce by themselves (without a host), viruses are not considered living. Nor do viruses have cells: they’re very small, much smaller than the cells of living things, and are basically just packages of nucleic acid and protein.

Viruses are considered by some biologists to be a life form, because they carry genetic material, reproduce, and evolve through natural selection, although they lack the key characteristics, such as cell structure, that are generally considered necessary criteria for life.

Viruses aren’t actually alive – they don’t grow or move themselves, or eat or use energy, and they can’t reproduce on their own.

“Feed a cold, starve a fever,” so the old saying goes, and according to a new study, it may hold some truth. Researchers found that mice with a bacterial infection died after being fed, while mice with a viral infection survived after eating.

Viruses may cause disease but some can fall ill themselves. For the first time, a group of scientists have discovered a virus that targets other viruses.

Phages, formally known as bacteriophages, are viruses that solely kill and selectively target bacteria. They are the most common biological entities in nature, and have been shown to effectively fight and destroy multi-drug resistant bacteria.

Cytotoxic T lymphocytes, natural killer (NK) cells and antiviral macrophages can recognize and kill virus-infected cells. Helper T cells can recognize virus-infected cells and produce a number of important cytokines.

The first human virus to be identified was the yellow fever virus. In 1881, Carlos Finlay (1833–1915), a Cuban physician, first conducted and published research that indicated that mosquitoes were carrying the cause of yellow fever, a theory proved in 1900 by commission headed by Walter Reed (1851–1902).