Virology News -- ScienceDaily Virology News. Read current research on the virus structure, specific viruses (H5N1 flu, West Nile virus, HIV and more) and responses.

  • Breakthrough in photonic biosensors could lead to super-accurate diagnostic and detectors
    on March 22, 2018 at 6:08 pm

    Scientists have found a way to determine the density of charges on an area of a whispering gallery mode micro-bead's surface, as well as the charge of an ensnared nanoparticle or virus, which could allow researchers and manufacturers not just to identify nanoparticles, but to manipulate them. […]

  • Mumps resurgence likely due to waning vaccine-derived immunity
    on March 21, 2018 at 6:14 pm

    A resurgence of mumps in the US among vaccinated young adults appears to be due to waning of vaccine-induced immunity, according to a recent analysis. Researchers found vaccine-derived immune protection against mumps lasts about 27 years after the last dose. The findings suggest that, in addition to the currently recommended two doses of mumps vaccine in childhood, a third dose at age 18 may help sustain protection. […]

  • Discovered mode of drinking in mosquitoes carries biomedical implications
    on March 20, 2018 at 12:43 pm

    Mosquitoes may have a reputation for being one of the world's most intractable pests, but they're actually quite tiny and fragile. So when an international team of scientists wanted to observe the underlying mechanisms of how the insects feed, they had to get creative. […]

  • Deeper insight into viral infections
    on March 19, 2018 at 4:01 pm

    Researchers have developed a new analysis technique that sheds more light on viral infections. They used the new method to demonstrate that virus-infected cells produce far more infection-related proteins and peptides than previously thought. […]

  • Brazil yellow fever outbreak necessitates vaccines
    on March 16, 2018 at 7:38 pm

    Brazil is in the midst of a yellow fever outbreak, with the mosquito-borne virus reaching popular tourist destinations that do not normally see the disease. Since January 2018, 10 cases of yellow fever have been confirmed in international travelers visiting Brazil, including four deaths. […]

  • Climate change promotes the spread of mosquito and tick-borne viruses
    on March 16, 2018 at 3:13 pm

    Scientists find that global warming has allowed disease-bearing insects to proliferate, increasing exposure to viral infections. […]

  • Viral hideout: After infection, herpes lurks in nerve cells
    on March 15, 2018 at 1:38 pm

    The ability of the 'cold sore' herpes simplex virus to establish quiet infections and reawaken periodically has long mystified scientists. A new study in mice reveals that a key host protein acts as a critical regulator of the virus's sleep-wake cycle. […]

  • A starfish cold case reopens, climate change remains suspect
    on March 13, 2018 at 7:21 pm

    As ocean temperatures rise and oceanic diseases proliferate, species like sea stars struggle to survive, and scientists are looking for underlying causes. To bring clarity to the sea star disease problem, the scientists propose a new, broad nomenclature. […]

  • Feeding wildlife can influence migration, spread of disease
    on March 13, 2018 at 7:21 pm

    Animal migration patterns are changing as humans alter the landscape, according to new research. Those changes can affect wildlife interactions with parasites-with potential impacts on public health and on the phenomenon of migration itself. […]

  • Mutating Ebola's key protein may stop replication
    on March 12, 2018 at 7:54 pm

    Researchers were able to mutate Viral Protein 40 (VP40) in a way that changed the residues of the protein, blocking the budding and replication of Ebola virus in a model system. […]

  • Key step in viral replication
    on March 12, 2018 at 5:29 pm

    Researchers showed how a common virus hijacks a host cell's protein to assemble new viruses. […]

  • Humans behind majority of raptor deaths in Ontario, Canada
    on March 12, 2018 at 5:01 pm

    Researchers found that a majority of raptor deaths are due to trauma and starvation caused by urban expansion and other types of anthropogenic landscape alterations. […]

  • Dengue fever linked to increased risk of stroke
    on March 12, 2018 at 2:40 pm

    A new study has found that people with dengue fever have a higher risk of stroke, especially in the first 2 months following infection. […]

  • New way found to defeat HIV latency
    on March 8, 2018 at 7:31 pm

    Researchers have found a mechanism for making HIV come out of hiding and become susceptible to anti-HIV drugs. […]

  • Discovery fills gap in search for better treatments for Ebola, other viruses
    on March 7, 2018 at 5:18 pm

    Researchers have found the Ebola polymerase (enzyme), which may lead to more effective research and better treatments for the often fatal infection, and other related viral diseases. […]

  • Applied math reveals the key to stopping norovirus lies -- literally -- in our own hands
    on March 7, 2018 at 2:53 pm

    From stately cruise ships to Olympic host cities, recent headline-grabbing outbreaks prove that norovirus, an incapacitating stomach bug, can strike anywhere and anytime. A new study uses mathematical modelling and data from real-world cruise ship outbreaks to find the best way of stopping the disease's spread. Their surprising results reveal that washing your hands is more effective than surface cleaning or even quarantine at breaking the chain of transmission. […]

  • Why the latest shingles vaccine is more than 90 percent effective
    on March 7, 2018 at 2:52 pm

    A new study has shown how the body's immune system responds to the new shingles vaccine, Shingrix, making it more than 90 percent effective at protecting against the virus. […]

  • Mosquito gut may hold the key to preventing Dengue and Zika
    on March 6, 2018 at 7:16 pm

    A mosquito's ability to replicate and transmit a virus depends on the metabolic environment of tissues in its midgut: the primary site of infection. By targeting the sphingolipid pathway, which links together several pathways important for cell signaling and subcellular structure that are altered by virus infection, researchers could devise strategies that stall viral replication in the mosquito and prevent its transmission to humans. […]

  • Broad spectrum antiviral drug inhibits a range of emerging coronaviruses
    on March 6, 2018 at 6:18 pm

    Researchers have long known that RNA viruses called coronaviruses cause the common cold and pneumonia. In the last two decades or so, though, researchers have found that these viruses can jump between animal and human hosts. In recent years, coronaviruses have caused lethal outbreaks of severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) that span multiple continents. To date, no retroviral drug has been approved to treat these infections. […]

  • New way to potentially fight Ebola
    on March 6, 2018 at 4:56 pm

    Researchers have shown an innovative antibody delivery method could be an effective way to prevent and treat Ebola infection. They demonstrated that delivering a monoclonal antibody gene to a cell through a viral vector -- a process that bypasses the need for the host to generate a natural immune response -- provided up to 100-per-cent protection against infection in mice. The mice expressed the antibody for more than 300 days. […]

  • New test extends window for accurate detection of Zika
    on March 6, 2018 at 1:54 pm

    Diagnosis of Zika infection is complex. Molecular tests for exposure are only reliable in the first two to three weeks after infection. Antibody tests are confounded by cross-reactivity of antibodies to Zika with similar viruses like dengue and yellow fever. A new blood test called ZIKV-NS2B-concat ELISA is faster, less expensive, and extends the window of accurate detection to months after onset of infection, giving clinicians a powerful tool to screen for Zika throughout pregnancy. […]

  • Broadly neutralizing antibody treatment may target viral reservoir in monkeys
    on March 4, 2018 at 10:00 pm

    After receiving a course of antiretroviral therapy for their HIV-like infection, approximately half of a group of monkeys infused with a broadly neutralizing antibody to HIV combined with an immune stimulatory compound suppressed the virus for six months without additional treatment, according to a new study. The therapy may have targeted the viral reservoir -- populations of long-lived, latently infected cells that harbor the virus and that lead to resurgent viral replication when suppressive therapy is discontinued. […]

  • Here's how viruses inactivate the immune system, causing cancer
    on March 2, 2018 at 2:10 pm

    It's no new news that viruses cause cancer. For example, human papillomavirus (HPV) causes almost all of the more than 500,000 annual worldwide cases of cervical cancer. This makes sense: By driving the proliferation of infected cells, viruses speed manufacture of more viruses, but excessive cellular proliferation is also a hallmark of cancer. Now a new review explores another strategy that viruses use to ensure their own survival, also with the unfortunate byproduct of promoting cancer, namely the viral ability to manipulate the human immune system. This new understanding may help to increase the effectiveness of immune-based therapies against cancer. […]

  • New insights into how a virus-blocking bacterium operates in mosquitoes
    on March 1, 2018 at 7:42 pm

    New research reveals details of the mechanism by which the bacterium Wolbachia blocks viruses in mosquito cells, suggesting that it reduces viral replication inside cells and that rapid degradation of viral RNA is involved. […]

  • Yellow fever virus is detected in urine and semen almost a month after infection
    on March 1, 2018 at 7:41 pm

    The confirmation involved one single patient; Brazilian investigators say it suggests the virus may be contagious for a period which stretches longer than previously thought. Scientists especulate whether the use of urine samples could allow for positive diagnosis in asymptomatic patients, who comprise half of the cases of yellow fever's infection. […]

  • Virus that lives in Yellowstone hot springs described
    on March 1, 2018 at 6:07 pm

    A new study explains how a lemon-shaped virus assembles itself and how the virus ejects the DNA it carries into host cells. […]

  • How reliable is diagnostic testing for Zika?
    on March 1, 2018 at 3:36 pm

    Globally, Brazil has been the hardest hit by the current Zika outbreak. Almost all cases of Zika-associated malformations in newborns have been reported from this country. Scientists have shown that molecular diagnostic tests for the Zika virus in Brazil are not always reliable. Almost two thirds of all laboratories showed false-positive or false-negative results. […]

  • As summers get warmer, more rain may not be better than less
    on February 28, 2018 at 6:41 pm

    Warm, wet summers are historically unusual and could bring unexpected disruptions to ecosystems and society, according to new research. […]

  • Flu may impact brain health
    on February 26, 2018 at 6:14 pm

    Female mice infected with two different strains of the flu exhibit changes to the structure and function of the hippocampus that persist for one month after infection, according to new research. […]

  • Proof-of-concept study reveals feasibility of eliminating rabies in Africa
    on February 26, 2018 at 5:24 pm

    Scientists have carried out a mass dog vaccination in Chad and determined its effect on human rabies exposure. The study employed a bio-mathematical method for estimating the transmission dynamics of rabies. The researchers conclude that with political will and the necessary funding, elimination of rabies is possible in Africa. […]