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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 to explore how Zika virus enters human cells

Researchers to explore how Zika virus enters human cells

A group of Western Illinois University student and faculty researchers are spending the summer conducting surveillance of tick-borne diseases and mosquito-borne arboviruses in regional counties. [More]
Scientists isolate antibodies capable of neutralizing dengue and Zika virus

Scientists isolate antibodies capable of neutralizing dengue and Zika virus

Scientists from the Institut Pasteur and the CNRS, in collaboration with Imperial College London and the University of Vienna, Austria, have identified antibodies that can efficiently neutralize both the dengue virus and the Zika virus. [More]
SLU to conduct human clinical trial of vaccine to protect people from Zika virus

SLU to conduct human clinical trial of vaccine to protect people from Zika virus

Saint Louis University's vaccine center has been tapped by the National Institutes of Health to conduct a human clinical trial of a vaccine to prevent the Zika virus, which can cause devastating birth defects in babies. [More]
Researchers develop new formulations for topical treatments of oral mucosal conditions

Researchers develop new formulations for topical treatments of oral mucosal conditions

On June 24, 2016, at the 94th General Session & Exhibition of the International Association for Dental Research, researcher W. Peter Holbrook, University of Iceland, will present a study titled "Development of Drugs for Local Treatment of Oral Conditions." The IADR General Session is being held in conjunction with the 3rd Meeting of the IADR Asia Pacific Region and the 35th Annual Meeting of the IADR Korean Division. [More]
Research shows enveloped viruses could survive on toys long enough to cause infection

Research shows enveloped viruses could survive on toys long enough to cause infection

Certain viruses, such as influenza, could survive on children's toys long enough to result in exposures, placing children at risk for getting infectious diseases, according to researchers at Georgia State University. [More]
Pre-existing dengue antibodies can intensify Zika virus infection

Pre-existing dengue antibodies can intensify Zika virus infection

Previous exposure to the dengue virus may increase the potency of Zika infection, according to research from Imperial College London. [More]
Major review highlights lack of genetic understanding of Zika virus

Major review highlights lack of genetic understanding of Zika virus

A major review of the Zika virus has concluded that further research to understand the nature of the virus is critical to developing antiviral treatments and vaccines.The paper, published in the journal Veterinary Quarterly, considers the breadth of current research and highlights a lack of understanding of the nature of the virus. [More]
Latin American women report Zika virus alerts as reason for seeking abortion

Latin American women report Zika virus alerts as reason for seeking abortion

Pregnant women in Latin American countries were more likely to seek an abortion after receiving health alerts about Zika virus, according to a study co-authored by Princeton University researchers and published in the New England Journal of Medicine. [More]
New optogenetic manipulation technique could possibly reduce migraine headaches

New optogenetic manipulation technique could possibly reduce migraine headaches

Despite decades of research, migraines are often not well controlled with medication. For those prone to this type of debilitating headache, it sometimes seems nothing can stop the pain and the sensitivity to light. But what if light itself was key to their relief? [More]
Researchers discover how West Nile virus survivors often develop memory loss

Researchers discover how West Nile virus survivors often develop memory loss

Researchers at the University of Colorado Anschutz Medical Campus have discovered how the most severe forms of West Nile virus cause memory loss and mood disorders, opening the door to potential new treatments for the mosquito-borne illness. [More]
'Simple' model predicts PegIFN response in chronic HBV

'Simple' model predicts PegIFN response in chronic HBV

Chinese researchers have developed a scoring system based on hepatitis B virus-related clinical parameters to predict response to pegylated-interferon in chronic HBV patients. [More]
HCC predictors identified for chronic HBV patients with newly diagnosed cirrhosis

HCC predictors identified for chronic HBV patients with newly diagnosed cirrhosis

In patients with chronic hepatitis B virus infection who have been newly diagnosed with cirrhosis, the risk of hepatocellular carcinoma development can be ascertained using several clinical and molecular factors, study findings indicate. [More]
Maternal HBsAg can serve as HBV vertical transmission marker

Maternal HBsAg can serve as HBV vertical transmission marker

Two studies have independently identified quantitative hepatitis B surface antigen as a marker to identify pregnant women with chronic hepatitis B virus infection whose infants are at high-risk of infection despite immunoprophylaxis. [More]
Study to evaluate magnitude of health risks caused by Zika virus in pregnant women, infants

Study to evaluate magnitude of health risks caused by Zika virus in pregnant women, infants

The National Institutes of Health and Fundacao Oswaldo Cruz-Fiocruz, a national scientific research organization linked to the Brazilian Ministry of Health, have begun a multi-country study to evaluate the magnitude of health risks that Zika virus infection poses to pregnant women and their developing fetuses and infants. [More]
Mobile devices of healthcare workers often contaminated by viral RNA

Mobile devices of healthcare workers often contaminated by viral RNA

In clinical settings, mobile phones benefit patients by placing useful data and information at the fingertips of health professionals during interactions on the ward. [More]
First CRISPR/Cas9 screen helps identify human proteins required for Zika virus replication

First CRISPR/Cas9 screen helps identify human proteins required for Zika virus replication

Scientists at the University of Massachusetts Medical School have performed the first CRISPR/Cas9 screen to discover human proteins that Zika virus needs for replication. [More]
Inflammatory response to mosquito bites can help spread viral infections

Inflammatory response to mosquito bites can help spread viral infections

Mosquito bite sites are not just itchy, irritating nuisances - they also make viral infections spread by the insects far worse, new research has found. [More]
Experts use next-generation genetic sequencing to diagnose suspected brain infections

Experts use next-generation genetic sequencing to diagnose suspected brain infections

In a proof-of-principle study, a team of physicians and bioinformatics experts at Johns Hopkins reports they were able to diagnose or rule out suspected brain infections using so called next-generation genetic sequencing of brain tissue samples. [More]
New study sheds light on sexual health of gay and bisexual men

New study sheds light on sexual health of gay and bisexual men

More gay and bisexual men than ever are getting tested for HIV, according to new data from the National Gay Men's Sex Survey. The survey is the largest of its kind in the UK and sheds light on the sexual health of men who have sex with men. [More]
New method helps analyse how cold viruses penetrate into cells

New method helps analyse how cold viruses penetrate into cells

Cold viruses cause us irritation by penetrating into our cells and transporting their RNA into the cytoplasma of the infected cells. This is the only way they can multiply. The details of how the transfer of the RNA from within the virus occurs are difficult to study. [More]
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