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.

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Overview

Feature Articles

Latest Virus News and Research

SARS-CoV-2 variant neutralization and novel mAbs reveal protection against Omicron in new research

SARS-CoV-2 variant neutralization and novel mAbs reveal protection against Omicron in new research

Researchers investigate human monkeypox infection without sexual exposure or viral prodrome

Researchers investigate human monkeypox infection without sexual exposure or viral prodrome

Exploring a paralytic poliomyelitis case in an unvaccinated person

Exploring a paralytic poliomyelitis case in an unvaccinated person

Researchers provide comprehensive review of human monkeypox infections

Researchers provide comprehensive review of human monkeypox infections

The seasonality of parturition and virus infection dynamics in a tropical bat population

The seasonality of parturition and virus infection dynamics in a tropical bat population

The QCOVID4 algorithm developed using data from the Omicron wave identifies those at highest risk of severe COVID-19 outcomes

The QCOVID4 algorithm developed using data from the Omicron wave identifies those at highest risk of severe COVID-19 outcomes

Host anti-viral factors and pathways regulating SARS-CoV-2 infection

Host anti-viral factors and pathways regulating SARS-CoV-2 infection

Study finds hybrid immunity or booster vaccination provides more protection against Omicron infections than full vaccination alone

Study finds hybrid immunity or booster vaccination provides more protection against Omicron infections than full vaccination alone

How do BNT162b2 vaccine-induced neutralizing and non-neutralizing antibodies synergize to promote protection against SARS-CoV-2?

How do BNT162b2 vaccine-induced neutralizing and non-neutralizing antibodies synergize to promote protection against SARS-CoV-2?

Waning of humoral immune responses to SARS-CoV-2 after 14 months of infection

Waning of humoral immune responses to SARS-CoV-2 after 14 months of infection

The potential European animal hosts and reservoirs of monkeypox

The potential European animal hosts and reservoirs of monkeypox

Study highlights the lack of evidence-based clinical management guidelines for monkeypox

Study highlights the lack of evidence-based clinical management guidelines for monkeypox

Study detects asymptomatic monkeypox virus infection

Study detects asymptomatic monkeypox virus infection

Majority of people infected with Omicron variant didn't know they had the virus, study finds

Majority of people infected with Omicron variant didn't know they had the virus, study finds

Acid ceramidase is a SARS-CoV-2 host factor, study says

Acid ceramidase is a SARS-CoV-2 host factor, study says

Study provides insights into understanding the biology of circulating Hepatitis E variants

Study provides insights into understanding the biology of circulating Hepatitis E variants

The impact of the P681H spike mutation in the SARS-CoV-2 Alpha variant

The impact of the P681H spike mutation in the SARS-CoV-2 Alpha variant

Human-to-dog transmission of monkeypox virus reported

Human-to-dog transmission of monkeypox virus reported

A dermatological approach to diagnosing monkeypox

A dermatological approach to diagnosing monkeypox

Can evolutionary principles lead to new treatments or vaccines for monkeypox?

Can evolutionary principles lead to new treatments or vaccines for monkeypox?