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

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Latest Virus News and Research

Revolutionizing microscopy with affordable high-resolution techniques

Revolutionizing microscopy with affordable high-resolution techniques

Vaping increases susceptibility to COVID-19 infection, study finds

Vaping increases susceptibility to COVID-19 infection, study finds

Study finds October-born kids less likely to catch flu post-vaccination

Study finds October-born kids less likely to catch flu post-vaccination

Study reveals BCG vaccine's unexpected role in fighting influenza

Study reveals BCG vaccine's unexpected role in fighting influenza

Healthcare leaders advocate for restoring Canada's hypertension control program

Healthcare leaders advocate for restoring Canada's hypertension control program

Zika virus detected in Singapore neighborhood: 15 cases spark renewed vigilance

Zika virus detected in Singapore neighborhood: 15 cases spark renewed vigilance

Researchers develop promising recombinant flu vaccine using nanoliposome technology

Researchers develop promising recombinant flu vaccine using nanoliposome technology

Innovative research identifies key genes in cassava whitefly management

Innovative research identifies key genes in cassava whitefly management

Understanding the role played by HIV in pulmonary hypertension

Understanding the role played by HIV in pulmonary hypertension

Gut microbial metabolite plays a role in exacerbating thrombosis

Gut microbial metabolite plays a role in exacerbating thrombosis

Yale School of Medicine secures $575,000 grant for Long COVID research

Yale School of Medicine secures $575,000 grant for Long COVID research

Research reveals bacteria's dynamic defense duo against phage viruses

Research reveals bacteria's dynamic defense duo against phage viruses

Researchers identify potential treatment for cardiovascular disease linked to Type 2 diabetes

Researchers identify potential treatment for cardiovascular disease linked to Type 2 diabetes

Increased paxlovid use could lead to significant hospitalization reductions and cost savings

Increased paxlovid use could lead to significant hospitalization reductions and cost savings

Florida defies CDC in measles outbreak, telling parents it’s fine to send unvaccinated kids to school

Florida defies CDC in measles outbreak, telling parents it’s fine to send unvaccinated kids to school

Developing a novel norovirus vaccine candidate with INTEGRA pipettes

Developing a novel norovirus vaccine candidate with INTEGRA pipettes

Natural killer cells lead the charge in cancer treatment innovation

Natural killer cells lead the charge in cancer treatment innovation

Persistent COVID-19 could drive virus evolution, new study suggests

Persistent COVID-19 could drive virus evolution, new study suggests

Major discovery improves the understanding of brain fog associated with Long COVID

Major discovery improves the understanding of brain fog associated with Long COVID

October found to be the optimum time to vaccinate against influenza

October found to be the optimum time to vaccinate against influenza