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

Rare lung cell found to protect against COVID-19 death

Rare lung cell found to protect against COVID-19 death

Children with chronic conditions face higher RSV hospitalization risk

Children with chronic conditions face higher RSV hospitalization risk

Novel cancer immunotherapy approach could complement existing CAR-T treatments

Novel cancer immunotherapy approach could complement existing CAR-T treatments

Shingles vaccine eligibility lowers dementia risk in older adults

Shingles vaccine eligibility lowers dementia risk in older adults

COVID-19 lowers sperm count and motility, new study confirms

COVID-19 lowers sperm count and motility, new study confirms

H5N1's evolutionary leap could undermine vaccines and heighten human infection risk

H5N1's evolutionary leap could undermine vaccines and heighten human infection risk

New biosensor offers fast detection of H5N1 in farm air

New biosensor offers fast detection of H5N1 in farm air

Baloxavir marboxil shows promise in reducing household flu spread

Baloxavir marboxil shows promise in reducing household flu spread

Scientists develop promising new drug candidates against coronaviruses

Scientists develop promising new drug candidates against coronaviruses

One RSV shot cuts severe lung infections in older adults for three seasons, trial shows

One RSV shot cuts severe lung infections in older adults for three seasons, trial shows

San Antonio scientists use machine learning to identify potential treatments for deadly viruses

San Antonio scientists use machine learning to identify potential treatments for deadly viruses

New vaccine targets sugar shield to protect against multiple coronaviruses

New vaccine targets sugar shield to protect against multiple coronaviruses

Beckman Coulter Life Sciences transforms purification with the launch of the OptiMATE Gradient Maker

Beckman Coulter Life Sciences transforms purification with the launch of the OptiMATE Gradient Maker

Interferon regulatory factor 8 identified as key driver of liver fat buildup in NAFLD

Interferon regulatory factor 8 identified as key driver of liver fat buildup in NAFLD

Africa CDC and WHO strengthen mpox response with updated strategy

Africa CDC and WHO strengthen mpox response with updated strategy

Public ignorance and apathy towards bird flu could hinder preventive efforts

Public ignorance and apathy towards bird flu could hinder preventive efforts

Legal challenge puts ACA’s preventive health services in jeopardy

Legal challenge puts ACA’s preventive health services in jeopardy

Vaccine trial shows promise for saving California condors from bird flu

Vaccine trial shows promise for saving California condors from bird flu

Experimental bird flu vaccine offers strong protection in preclinical trials

Experimental bird flu vaccine offers strong protection in preclinical trials

Beyond Ivy League, RFK Jr.’s NIH slashed science funding across states that backed Trump

Beyond Ivy League, RFK Jr.’s NIH slashed science funding across states that backed Trump

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