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.
Researchers reported that they have identified a fully human monoclonal antibody that prevents the SARS-CoV-2 (COVID-19) virus from infecting cultured cells.
With the number of COVID-19 cases reducing in the United States and elsewhere, public health officials are attempting to understand the proportion of people who have been infected by coronavirus.
When a person contracts a respiratory viral infection like COVID-19 or influenza, the immune system responds in a myriad of ways to eliminate the virus.
The hunt for an effective treatment for COVID-19 has led one team of researchers to find an improbable ally for their work: a llama named Winter.
Bluetongue virus (BTV) is a livestock disease that can lead to devastating health and economic outcomes, but despite this fact, it can be challenging to establish its origin.
A study published recently in eLife reports that synthetic antibodies developed with bacterial superglue have the potential to protect against deadly viruses.
A research team from the Severinov Laboratory at Skoltech, together with their collaborators from Israel and Switzerland, has analyzed a bacterial BREX defense mechanism that was poorly studied to date.
Australian researchers have revealed for the first time that males infected with the Toxoplasma parasite can impact their offspring's brain health and behavior.
Many tests have been formulated for identifying the genetic material of the SARS-CoV-2 coronavirus that is responsible for causing the COVID-19 pandemic.
The immune system responds immediately when a virus enters the cell, producing interferon—the signaling protein.
Scientists have discovered two specific types of cells in the nose that are believed to be the initial infection points for COVID-19 coronavirus.
At Ulm University in Germany, a new method has been devised for developing pan-genome subgraphs at various granularities without the need to wait several hours or days for the software to process the complete genome.
Pancreatic cancer cells use a normal waste removal process to hide tags on their surfaces that would otherwise let the immune system destroy them, a new study finds. Published online April 22 in Nature, the study results help to answer a longstanding question: why are pancreatic cancers so resistant to immunotherapies, which use the body's own immune defenses to fight cancer?
A global race is underway to discover a vaccine, drug, or combination of treatments that can disrupt the SARS-CoV-2 virus, which causes the COVID-19 disease, and prevent widespread deaths.
A research team from China has now created two novel compounds that block the SARS-CoV-2 main protease (Mpro).
A study published recently in eLife reports new understanding of conditions that govern self-assembly in the protective shell of viruses.
AZoLifeSciences speaks to Dr. Silin Tang about her research into the importance of identifying salmonella in food.
Researchers from North Carolina State University and Collaborations Pharmaceuticals have created a free-to-use database of 14,000 known macrolactones - large molecules used in drug development - which contains information about the molecular characteristics, chemical diversity and biological activities of this structural class.
A novel method to predict the most promising targets for antiviral drugs or vaccines is based on the conformational changes viral glycoproteins go through during the process of recognition and binding to the host cell.
Viruses are responsible for causing many different diseases, with the present coronavirus pandemic being one such example. Hence, these infectious agents are part of the human experience all through their lives.