Current Zika Virus News and Events | Page 25

Current Zika Virus News and Events, Zika Virus News Articles.
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Arthritis-causing virus hides in body for months after infection
Researchers at Washington University School of Medicine in St. Louis have developed a way to fluorescently tag cells infected with chikungunya virus. The technique opens up new avenues to study how the virus persists in the body and potentially could lead to a treatment. (2019-08-29)

How chikungunya virus may cause chronic joint pain
A new method for permanently marking cells infected with chikungunya virus could reveal how the virus continues to cause joint pain for months to years after the initial infection, according to a study published Aug. 29 in the open-access journal PLOS Pathogens by Deborah Lenschow of Washington University School of Medicine in St. Louis, and colleagues. (2019-08-29)

Detailed map shows how viruses infect humans
Columbia University researchers have generated a comprehensive map of protein-protein interactions that reveal how viruses infect human cells. (2019-08-29)

Machine learning algorithm can't distinguish these lab mini-brains from preemie babies
Nine-month-old brains-in-a-dish and the brains of premature newborn babies generate similar electrical patterns, as captured by electroencephalogram (EEG) -- the first time such brain activity has been achieved in a cell-based laboratory model. (2019-08-29)

Researchers describe a key protein for Epstein-Barr virus infection
Two studies by IRB Barcelona and IBMB-CSIC published in Nature Communications reveal the portal structure of the Epstein-Barr virus and bacteriophage T7. No treatment is currently available for the infection caused by the Epstein-Barr virus, which, in addition to causing mononucleosis, leads to various types of cancer. The studies were done in collaboration with CNB-CSIC and the University of Oxford. (2019-08-29)

Molecular big data, a new weapon for medicine
Being able to visualize the transmission of a virus in real-time during an outbreak, or to better adapt cancer treatment on the basis of the mutations present in a tumor's individual cells are only two examples of what molecular Big Data can bring to medicine and health globally. (2019-08-28)

Science wages a battle against the swine sector's costliest virus
A research team at the University of Córdoba has compared the behavior of two different strains of the Porcine Reproductive and Respiratory Syndrome Virus, to expedite the production of an effective vaccine in the future. (2019-08-28)

Graphene shield shows promise in blocking mosquito bites
An innovative graphene-based film helps shield people from disease-carrying mosquitos, according to a new study funded by the National Institute of Environmental Health Sciences (NIEHS), part of the National Institutes of Health. The research, conducted by the Brown University Superfund Research Center, Providence, Rhode Island, is published in the Proceedings of the National Academy of Sciences. (2019-08-26)

To stop mosquito-transmitted illnesses, pay attention to how humans behave: study
Targeting the mosquito population within a defined area is the primary way scientists and public health officials mitigate the spread of diseases caused by viruses like Zika, dengue fever, and West Nile. But researchers have discovered that evaluating how humans commute to and from an affected area, as well as their living habits, is key for successful mitigation planning. (2019-08-26)

New research predicts stability of mosquito-borne disease prevention
To reduce transmission of dengue to humans, scientists have introduced Wolbachia bacteria to A. aegypti mosquitoes. Now a team of international researchers has found that Wolbachia's ability to block virus transmission may be maintained by natural selection, alleviating concern that this benefit could diminish over time. (2019-08-26)

Researchers identify key areas of measles virus polymerase to target for antiviral drug development
Targeting specific areas of the measles virus polymerase, a protein complex that copies the viral genome, can effectively fight the measles virus and be used as an approach to developing new antiviral drugs to treat the serious infectious disease, according to a study by the Institute for Biomedical Sciences at Georgia State University published in PLoS Pathogens. (2019-08-22)

Discovery of 'hidden' outbreak hints that Zika virus can spread silently
Just when international fears of contracting Zika began to fade in 2017, an undetected outbreak was peaking in Cuba -- a mere 300 miles off the coast of Miami. A team of scientists at Scripps Research, working in concert with several other organizations, uncovered the hidden outbreak by overlaying air-travel patterns with genomic sequencing of virus samples from infected travelers. The discovery is featured on the cover of the Aug. 22, 2019 issue of Cell. (2019-08-22)

An unreported Zika outbreak in 2017 detected through travel surveillance and genetics
By sequencing virus genomes from infected travelers, analyzing travel patterns and mosquito modeling, researchers reporting Aug. 22, 2019 in the journal Cell unearthed a spike in Zika cases from travelers returning from Cuba during the summer of 2017 that was not captured by local reports. (2019-08-22)

Yale researchers detect unreported Zika outbreak
Researchers at the Yale School of Public Health (YSPH) have detected a large unreported Zika outbreak that occurred in Cuba during 2017, a year after Zika outbreaks peaked throughout the Americas. (2019-08-22)

Here's how early humans evaded immunodeficiency viruses
The cryoEM structure of a simian immunodeficiency virus protein bound to primate proteins shows how a mutation in early humans allowed our ancestors to escape infection while monkeys and apes did not. SIV's Nef protein forms a solid link between two primate proteins, tetherin and AP-2, forcing the destruction of tetherin, which normally prevents new SIV virions from budding off. A mutation in human tetherin disrupted binding, thwarting SIV budding -- until HIV evolved a work-around. (2019-08-22)

Plant protection: Researchers develop new modular vaccination kit
Simple, fast and flexible: it could become significantly easier to vaccinate plants against viruses in future. Scientists at Martin Luther University Halle-Wittenberg (MLU), the Leibniz Institute of Plant Biochemistry (IPB) and the National Research Council in Italy (CNR) have developed a new method for this purpose. It enables the rapid identification and production of precisely tailored substances that combat different pathogens. The researchers discuss their work in the next edition of Nucleic Acids Research. (2019-08-21)

The substance found in brown coal can help combat viruses
Scientists from Russia demonstrated a novel approach leveraging the combination of high-resolution mass spectrometry and chemoinformatics to identify biologically active molecular components of humic substances extracted from coal, and discovered substances with antiviral activity against the tick-borne encephalitis virus. The results of their study were published in the Scientific Reports journal. (2019-08-19)

Physiological mechanisms leading to enterovirus opening revealed
Enteroviruses are one of the most common human pathogens leading to high number of acute and chronic infections worldwide. The physiological events leading to successful enterovirus infection are still poorly understood. Researchers at the Nanoscience Center at the University of Jyväskylä and at the University of Helsinki have found significant new information concerning the role of Albumin and ions in host cell vesicles that promote genome release and efficient infection. The research was published in the Journal of Virology in August. (2019-08-16)

Expression of M gene segment of influenza A virus determines host range
The host range of the influenza A virus (IAV) is restricted by dysregulated expression of the M viral gene segment, according to a study published August 15, 2019 in the open-access journal PLOS Pathogens by Anice Lowen and John Steel of Emory University School of Medicine, and colleagues. (2019-08-15)

Charcoal-based drug delivery system improves efficacy of common herpes drug
A study led by researchers from the University of Illinois at Chicago has found that combining acyclovir -- a commonly prescribed topical herpes medication -- with particles of activated carbon improves efficacy of the drug. (2019-08-14)

The risk of death from yellow fever can be detected sooner
A FAPESP-funded study with results published in The Lancet Infectious Diseases has identified markers capable of predicting mortality in patients with symptoms of yellow fever, potentially helping to prevent the development of severe conditions. (2019-08-14)

Birth defects associated with Zika virus infection may depend on mother's immune response
New research led by scientists at The Rockefeller University in New York may help explain why Zika virus infection causes birth defects in some children but not others. The study, which will be published August 14 in the Journal of Experimental Medicine, suggests that the risk of developing an abnormally small head (microcephaly) depends on the types of antibody produced by pregnant mothers in response to Zika infection. (2019-08-14)

Findings shed new light on why Zika causes birth defects in some pregnancies
A new study shows that the risk of giving birth to a child with microcephaly might be related to how the immune system reacts against the Zika virus -- specifically what kind of antibodies it produces. (2019-08-14)

Deadly protein duo reveals new drug targets for viral diseases
New research from Cornell University details how two highly lethal viruses have greater pathogenic potential when their proteins are combined. (2019-08-13)

Anti-viral immune discovery could lead to better vaccines
Walter and Eliza Hall Institute researchers have identified a molecular switch that impacts immune responses to viral infections, and whether or not protective antibodies are produced. The team also made the surprising discovery that the immune system protects against different viruses via distinct pathways. Their findings could lead to better strategies to develop vaccines for previously hard-to-prevent viruses. (2019-08-13)

CSU team uncovers potential for Rift Valley fever virus transmission in Colorado livestock
Colorado State University researchers found that mosquitoes that could transmit the virus were abundant in feedlots and at nearby sites in Northern Colorado. (2019-08-12)

Dyes and viruses create new composite material for photooxidation reactions
A recent study, published in Advanced Materials, shows that native viruses can be employed as a scaffold to immobilise photoactive molecules to potentially oxidise organic pollutants present in wastewater, under visible light irradiation. (2019-08-12)

Existing anti-parasitic drug could offer treatment for Ebola
Amid the worsening Ebola outbreak in the Congo, now threatening to spill into Rwanda, a new study suggests that an existing, FDA-approved drug called nitazoxanide could potentially help contain this deadly, highly contagious infection. In meticulous experiments in human cells, led by Boston Children's Hospital, the drug significantly amplified immune responses to Ebola and inhibited Ebola replication. (2019-08-08)

Lassa virus' soft spot revealed
A new study identified and then reverse engineered the molecular properties shared by antibodies that are particularly efficient at inactivating or 'neutralizing' Lassa virus. The team's findings also revealed that most neutralizing antibodies bind to the same spot on the surface of Lassa virus, providing a map for rational vaccine design. (2019-08-08)

Newly developed approach shows promise in silencing HIV infection
Researchers from The University of Texas Medical Branch at Galveston have discovered a new potential medication that works with an HIV-infected person's own body to further suppress the ever present but silent virus that available HIV treatments are unable to combat. (2019-08-06)

Scientists propose environmentally friendly control practices for harmful tomato disease
Tomato yellow leaf curl disease (TYLCD) is the most destructive disease of tomato, causing severe damage to crops worldwide and resulting in high economic losses. To combat this disease, many farmers opt for intensive application of insecticides. However, this practice is frequently ineffective and has a negative impact on the environment and human health. A team of scientists found two environmentally friendly control alternatives. (2019-08-05)

Paradoxical outcomes for Zika-exposed tots
Forty-five percent of Zika-exposed infants who had abnormalities at birth had normal test results in the second or third year of life. By contrast, 25% who had normal assessments at birth had below average developmental testing or abnormalities in hearing or vision by age 32 months. (2019-08-02)

Hepatitis B: Unusual virus discovered in shrews
The discovery of an unusual hepatitis B virus from shrews offers new opportunities of better understanding the chronic progression of the disease. International research teams were able to demonstrate that an important protein which is essential for the development of a chronic course of infection is not present in this virus. DZIF scientists at the Charite - Universitaetsmedizin Berlin and the University of Giessen are leading the research. (2019-08-02)

Prior Zika virus or dengue virus infection does not affect secondary infections in monkeys
Previous infection with either Zika virus or dengue virus has no apparent effect on the clinical course of subsequent infection with the other virus, according to a study published August 1 in the open-access journal PLOS Pathogens by David O'Connor of the University of Wisconsin-Madison, and colleagues. (2019-08-02)

Fear of more dangerous second Zika, dengue infections unfounded in monkeys
An initial infection with dengue virus did not prime monkeys for an especially virulent infection of Zika virus, according to a study at the University of Wisconsin-Madison. Nor did a bout with Zika make a follow-on dengue infection more dangerous. (2019-08-01)

Can a combination immune therapy reduce genital herpes outbreaks?
New Haven, Conn. -- Yale investigators have shown that the combination of a vaccine and a medicated cream is a promising strategy to dramatically reduce the recurrence of genital herpes. Their study, co-led by researchers at the University of Pennsylvania and University of Cincinnati Children's Hospital Medical Center, was published in the journal npj Vaccines. (2019-08-01)

BU researcher asks, 'is it time for another contraception revolution?'
In an effort to protect the planet and preserve its natural treasures for future generations, another contraception revolution that provides options for populations not currently being served by modern contraception may be the answer according to a Perspective in this week's New England Journal of Medicine. (2019-07-31)

Snake fang-like patch quickly delivers liquid medicines in rodents
Scientists have created a microneedle patch based on the fangs of a snake that can deliver therapeutic liquids and a vaccine through the skin of rodents in under 15 seconds. (2019-07-31)

Neuroimaging essential for Zika cases
Infants in a recent study 'represented a group of ZIKV-exposed infants who would be expected to have a high burden of neuroimaging abnormalities, which is a difference from other reported cohorts,' Sarah B. Mulkey, M.D., Ph.D., writes in an invited commentary published in JAMA Network Open that accompanies the Rio de Janeiro study. (2019-07-31)

Simultaneous infection by 2 viruses the key to studying rare lymphoma
New research has found that a rare blood cancer can be simulated in the lab only by simultaneously infecting white blood cells with 2 viruses typically found in the tumors. (2019-07-29)

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