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Virdem overwrites the host with its own code and saves the original program at the very end. It was a direct-action virus and did not spread fast. [failed verification] It infected only files that had a COM extension. [5] When an infected file is run, the next uninfected program becomes infected.
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 February 2025. Computer program that modifies other programs to replicate itself and spread Hex dump of the Brain virus, generally regarded as the first computer virus for the IBM Personal Computer (IBM PC) and compatibles A computer virus is a type of malware that, when executed, replicates itself by ...
Viral pathogenesis is the study of the process and mechanisms by which viruses cause diseases in their target hosts, often at the cellular or molecular level.It is a specialized field of study in virology.
Direct action is a term for economic and political behavior in which participants use agency—for example economic or physical power—to achieve their goals. The aim of direct action is to either obstruct a certain practice (such as a government's laws or actions) or to solve perceived problems (such as social inequality).
Examples of vertical transmission include hepatitis B virus and HIV, where the baby is born already infected with the virus. [116] Another, more rare, example is the varicella zoster virus , which, although causing relatively mild infections in children and adults, can be fatal to the foetus and newborn baby.
Antigen detection, polymerase chain reaction assay, virus isolation, and serology: Most infections are mild and require no therapy or only symptomatic treatment. Under research [1] Trypanosoma brucei: African sleeping sickness (African trypanosomiasis) Identification of trypanosomes in a sample by microscopic examination
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Double-stranded RNA viruses (dsRNA viruses) are a polyphyletic group of viruses that have double-stranded genomes made of ribonucleic acid.The double-stranded genome is used as a template by the viral RNA-dependent RNA polymerase (RdRp) to transcribe a positive-strand RNA functioning as messenger RNA (mRNA) for the host cell's ribosomes, which translate it into viral proteins.