Virus

A virus is a microscopic infectious agent that can reproduce only inside a host cell. Viruses infect all types of organisms: from animals and plants, to bacteria and archaea. Since the initial discovery of tobacco mosaic virus by Martinus Beijerinck in 1898, more than 5,000 types of virus have been described in detail, although most types of virus remain undiscovered. Viruses are ubiquitous, as they are found in almost every ecosystem on Earth, and are the most abundant type of biological entity on the planet. The study of viruses is known as virology, and is a branch of microbiology.
What is a Virus?

A virus is a small infectious agent that can only replicate inside the cells of another organism. The word is from the Latin ''virus'' referring to poison and other noxious substances, first used in English in 1392. ''Virulent'', from Latin ''virulentus'' (poisonous), dates to 1400. A meaning of "agent that causes infectious disease" is first recorded in 1728, The term ''virion'' is also used to refer to a single infective viral particle. The plural is "viruses".

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Latest Virus News and Research

Researchers study the role of viral intramembrane interactions in controlling programmed cell death

Researchers study the role of viral intramembrane interactions in controlling programmed cell death

New system allows for individual supply of disinfected air in enclosed spaces for daily use

New system allows for individual supply of disinfected air in enclosed spaces for daily use

Resveratrol shows potential as SARS-CoV-2 antiviral, study finds

Resveratrol shows potential as SARS-CoV-2 antiviral, study finds

SARS-CoV-2 launches multipronged attack against host cell protein synthesis, study finds

SARS-CoV-2 launches multipronged attack against host cell protein synthesis, study finds

SARS-CoV-2 spike protein shows slow but stable evolution, study finds

SARS-CoV-2 spike protein shows slow but stable evolution, study finds

Monoclonal antibody HB27 shows potent neutralizing activity against SARS-CoV-2

Monoclonal antibody HB27 shows potent neutralizing activity against SARS-CoV-2

Could beta-blockers be a potential treatment for COVID-19?

Could beta-blockers be a potential treatment for COVID-19?

Study looks at the impact of COVID-19 lockdown on pediatric emergency admissions

Study looks at the impact of COVID-19 lockdown on pediatric emergency admissions

N439K mutation of SARS-CoV-2 may be more infectious and antibody resistant than Wuhan strain

N439K mutation of SARS-CoV-2 may be more infectious and antibody resistant than Wuhan strain

Asian countries need support to get equitable access to COVID-19 vaccines

Asian countries need support to get equitable access to COVID-19 vaccines

Zonitise launches antimicrobial surface coating that constantly eliminates harmful pathogens

Zonitise launches antimicrobial surface coating that constantly eliminates harmful pathogens

Siemens Healthineers SARS-CoV-2 IgG antibody test demonstrates ability to detect neutralizing antibodies

Siemens Healthineers SARS-CoV-2 IgG antibody test demonstrates ability to detect neutralizing antibodies

Immunonutrition may improve COVID-19 patients' recovery

Immunonutrition may improve COVID-19 patients' recovery

Transgenic mouse model could recapitulate severe COVID-19 in humans

Transgenic mouse model could recapitulate severe COVID-19 in humans

COVID-19 may trigger recurrent Guillain–Barré Syndrome episodes, a case study shows

COVID-19 may trigger recurrent Guillain–Barré Syndrome episodes, a case study shows

SARS-CoV-2 immunity can sustain for at least eight months, study finds

SARS-CoV-2 immunity can sustain for at least eight months, study finds

Recurrent SARS-CoV-2 mutations do not significantly increase transmissibility, says study

Recurrent SARS-CoV-2 mutations do not significantly increase transmissibility, says study

Researchers develop synthetic defective SARS-CoV-2 genome that inhibits viral replication

Researchers develop synthetic defective SARS-CoV-2 genome that inhibits viral replication

Antihypertensive drugs may reduce COVID-19 mortality in at-risk patients

Antihypertensive drugs may reduce COVID-19 mortality in at-risk patients

Phycobilins found to inhibit SARS-CoV-2 enzymes in vitro

Phycobilins found to inhibit SARS-CoV-2 enzymes in vitro