Computer Viruses

Ivanovsky and Beijerinck independently discovered that an infectious agent smaller than bacteria was causing disease in plants. Their work laid the foundation for the concept of viruses as distinct entities from bacteria, leading to further research and the eventual identification and characterization of viruses.

Viruses are non-living entities that require a host cell to replicate. They can infect various forms of life, including plants, animals, and even bacteria. Viruses can cause a range of illnesses, from the common cold to more severe diseases like HIV and COVID-19.

Viruses can be cultured in tissue or cell media.

A bug virus is a computer virus that infects software programs and causes them to malfunction. It can spread through infected files and disrupt the normal operation of a computer system. Bug viruses are typically designed to either cause harm to the system or steal sensitive information.

There are three (four in this case) subroutines common throughout most viruses: the search method, the infection method, the stealth method, and the payload (optional).

The search method enables the virus to determinate infected files from uninfected files and infect the uninfected ones.

The infection method allows the virus to inject its code into uninfected files found by the search subroutine.

The stealth method is what masks the virus's activities not only to the user, but also to the operating system and other security software installed on the host computer. Not all viruses have this subroutine.

The final (and optional) payload subroutine is the section of code in the virus that allows the malware to cause destruction to the infected computer, such as deleting files, stealing confidential information, locking the user out of their system, etc.

The FBI is not a bacteria, virus, or parasite. The FBI (Federal Bureau of Investigation) is a law enforcement agency of the United States government that investigates and enforces federal laws to protect and defend the country against criminal threats.

Viruses are not considered a kingdom because they lack the characteristics of living organisms, such as the ability to reproduce independently and carry out metabolic processes. Instead, they are classified as acellular entities that rely on host cells for replication.

There is no specific cure for the Marburg virus. Treatment focuses on supportive care to manage symptoms and complications, such as maintaining fluid balance, providing pain relief, and treating any secondary infections. Patients with Marburg virus disease may require hospitalization and supportive care in an intensive care unit.

A polymorphic virus is a type of malicious software that constantly changes its appearance in order to avoid detection by antivirus programs. It achieves this by encrypting its code with different algorithms each time it infects a new file or system. This makes it difficult for traditional signature-based antivirus software to identify and remove the virus.

Spikes on viruses are made up of proteins that are used to attach the virus to host cells. These proteins play a critical role in allowing the virus to enter and infect host cells by binding to specific receptors on the cell membrane.

Tobacco mosaic virus was the first virus to be crystallized in 1935 by Wendell Stanley.

The first virus to be isolated and identified was the tobacco mosaic virus in 1892 by Russian scientist Dmitri Ivanovsky.

The action carried out by a virus when it is activated is typically referred to as executing or running. This involves the virus code being triggered and performing its intended functions, which could include replicating itself, corrupting files, or stealing data.

A basic characteristic of a virus is that it cannot survive or reproduce on its own. It requires a host cell to replicate and multiply.

A virus would not append to inject itself into a target.

Proliferation and growth of microorganisms or viruses in the body can lead to infection, causing symptoms such as fever, inflammation, and tissue damage. The immune system responds by mobilizing immune cells to combat the invading pathogens, leading to an inflammatory response. If left unchecked, the infection can spread and potentially lead to more severe complications.

pathogen/host

Every virus has genetic material (DNA or RNA) and a protein coat (capsid) that protects the genetic material.

Viruses lack the cellular machinery for metabolism and reproduction on their own, which are key characteristics of living organisms. They can only replicate by hijacking host cells. Therefore, viruses are considered more like particles than living organisms.

Cytomegalovirus (CMV) is not considered an oncogenic virus, as it does not directly cause cancer. However, there have been studies suggesting a potential association between CMV infection and certain types of cancer, such as glioblastoma and some types of lymphoma. The exact relationship between CMV and cancer development is still being researched.

Hello all you budding scientists !

So what is the real reason that we are here? DOes a virus have a hyphae? And i can tell you right here right now that: No. No it doesnt. It certainly does not.

A virus is sometimes called a bug as a metaphor to describe a programming error or flaw in the system. Just like a bug in the natural world, a virus can disrupt normal functioning and cause problems. This term has been used in the tech industry for a long time and has become common slang.

Viruses lack the ability to carry out basic functions of living organisms, such as metabolism and reproduction, when they are outside a host cell. They also do not have the machinery to generate energy or produce proteins on their own. Viruses are considered obligate intracellular parasites because they rely on host cells to replicate.

The first computer virus is widely credited to have been created by a programmer named Robert Thomas in 1971. He wrote the Creeper virus, which was designed to infect DEC PDP-10 computers running the TENEX operating system.