Articles tagged with Sars
A study published in mBio reveals that the novel coronavirus HCoV-EMC is highly infectious and can evade the human immune system, but it is also susceptible to treatment with interferons, which could be a potential mode of treatment for large-scale outbreaks
A new coronavirus, hCoV-EMC, has been linked to severe disease in humans and can infect cells from various bat species and pigs. The virus uses a different receptor than SARS, but its ability to transmit between animals and humans repeatedly remains uncertain.
Researchers at Vanderbilt University and the University of North Carolina discovered a way to create a safer live vaccine for SARS and novel coronaviruses by disabling the ExoN proofreading protein. The new approach accelerates viral mutation, crippling its ability to cause disease in animals.
Researchers have identified a versatile inhibitor that prevents viral replication by targeting host proteins, offering potential new treatments for SARS and other coronaviruses. The compound works without harming the host, and its discovery highlights the importance of collaborative research.
Scientists have discovered a key to predicting emerging diseases like HIV, SARS, and flu by studying how viruses infect different species. By analyzing the relationships between species and viruses, researchers found that closely related flies are more susceptible to certain viruses.
A new study aims to shut down the viral assembly line of coronaviruses, a process crucial for their replication. The research focuses on the M protein, which forms the outer shell of the virus and is critical for its pathogenesis.
Researchers have identified a security system in host cells that viruses exploit to replicate, allowing them to evade the immune system. The discovery sheds light on how some viruses add chemical caps to RNA to bypass host cell defenses.
Researchers from Boston University's Center for Space Physics observed recent auroral displays in high latitudes accompanied by fainter glows in lower latitudes. The team detected signs of a new cycle of solar-terrestrial activity, including Stable Auroral Red (SAR) arcs in the southern hemisphere.
Research by Weijia Xing and colleagues reveals that most SARS epidemiological articles were submitted after the epidemic had ended, with only a small percentage published during the outbreak. The study suggests that journals alone are not sufficient to address delays in publishing epidemiological research on emerging infectious diseases.
Researchers studied China's SARS crisis response and found image repair efforts unsuccessful due to self-contradiction. The Chinese government has improved its PR strategies but still needs work in communicating with the public.
A case study examining SARS' impact on China's engagement in global health diplomacy found that the epidemic exposed a fundamental shortcoming in the country's public health system. This has led to a reevaluation of China's approach to health as a global public concern, with caution against foreign interference.
Researchers at the University of Texas Medical Branch (UTMB) have identified a viral protein called nsp1 as a major contributor to SARS virus virulence. The protein interferes with host cell defenses by targeting ribosomes, which are responsible for producing proteins crucial for immune defense.
Noninvasive ventilation can save lives in acute respiratory failure without increased risk of infectious transmission. The author argues that the precautionary principle suggests using noninvasive ventilation to conserve ICU equipment during an epidemic.
A study of critically ill patients with 2009 H1N1 found a high fatality rate of 40% due to severe acute respiratory distress syndrome and shock. Young patients were disproportionately affected, highlighting the importance of early recognition and treatment.
A new device has been developed that can detect viruses and biological materials more quickly and cheaply than existing methods. The device uses synthetic antibody mimic proteins attached to nanowires to create a sharp measurement of current, allowing for rapid detection in under 10 minutes.
A study found that mice treated with the algae-derived protein Griffithsin had a 100% survival rate after exposure to the SARS coronavirus, whereas untreated mice only survived 30%. The protein alters sugar molecules on the virus's envelope, preventing it from causing disease.
The PNWRCE will focus on identifying potential therapeutic targets for infectious diseases, including those caused by pathogens categorized as A, B and C. Researchers will study defects in the immune system caused by aging and disease-host interactions through genomics and genetic analyses.
Researchers found black gold bubbles in sunlight reflections on the ocean's surface, revealing a new technique to detect oil seeps. This method could provide timely and cost-effective means to survey oceans for oil spills and monitor human-induced releases.
Researchers have generated a synthetic SARS-like bat coronavirus that is infectious in cultured cells and mice, identifying pathways by which a bat coronavirus may have adapted to infect humans. The findings provide a model approach for rapid identification, analysis, and public health responses to future natural or intentional virus e...
Scientists at UNC Chapel Hill and Vanderbilt University Medical Center successfully recreated the bat variant of the SARS coronavirus, a major step forward in developing effective vaccines and treatments. The research could help prevent future outbreaks by identifying key pathways in virus emergence.
A study by NIAID authors identifies common determinants of disease emergence across time and place, including international trade, poverty, and climate change. The research highlights the need for a better understanding of these factors to prepare for future emerging diseases.
A Purdue University researcher has created a compound that prevents replication of the SARS virus, which could lead to a treatment for the disease. The molecular inhibitor was developed through structure-based design and has been tested in laboratory settings.
The NIAID has awarded a contract to the University of Washington to analyze and model virus-host interactions for SARS and bird flu. The research program will use systems biology approaches to generate predictive models that can be experimentally validated, providing valuable resources for the scientific community.
The new NIAID-funded programs aim to identify molecular features that distinguish bacterial and viral species, which may be targets for potential medical interventions. Researchers will use computational and experimental methods to analyze the dynamics of molecular components within microbes and their interactions with human cells.
Researchers developed a method to preserve and visualize SARS-coronavirus replication complexes, revealing the dependence on modified host membranes for viral replication. The study provides insights into the interplay between viral proteins and host membranes, opening doors for new antiviral strategies.
A recent study published in Nature reveals that zoonoses, disease originating in animals, are a major threat to emerging diseases. The team's analysis of 335 disease emergence incidents between 1940 and found that tropical regions with abundant wildlife species are likely next targets.
New analysis suggests SARS originated in bats, not palm civet cats as previously thought. The study reveals humans were the source of the virus found in those animals, contrary to earlier findings.
Researchers have discovered a crucial role for heparan sulfate in regulating embryonic stem cell potency, while also uncovering the mechanism behind SARS lung damage. The structures of key enzymes involved in these processes are now understood, opening up new avenues for treatment and drug development.
A new predictive model of disease spread has been developed using actual travel and census data from over 3,000 urban areas in 220 countries. The model provides predictions of outbreak likelihood and potential spread, with simulations that fit the actual SARS virus pattern in 2002.
Researchers discovered two human antibodies that can neutralize different strains of the SARS virus, which caused outbreaks in humans in 2002-2003. The antibodies were tested in lab assays and mouse models, showing potent neutralization of the virus.
Most SARS survivors have pulmonary and functional recovery from their acute illness, but a decline in mental health is reported one year after discharge. Caregivers also show a decline in mental health due to lifestyle interference and loss of control.
A study in Toronto found that restricting non-urgent hospital use during the 2003 SARS outbreak resulted in a 12% decrease in admissions. This reduction would only offset one-quarter of expected additional admissions in an influenza pandemic, highlighting potential limitations on future epidemic capacity.
Scientists investigate key clues behind coronavirus illness, including its ability to evade the immune system. They aim to design better vaccines and treatments for diseases like pandemic flu. By understanding virus-host interactions, researchers hope to refine their approach to combating emerging public health threats.
Research found that practicing Qigong helped chronically ill people reduce stress levels and cope with stigmatization during the SARS crisis. The study showed that Qigong provided a way for them to feel more in control of their health and connect with others who shared similar experiences.
A new study has identified hospital bed placement, staff working with symptoms of SARS, and oxygen therapy as significant risk factors for the spread of respiratory infections in hospitals. The findings have implications for controlling other respiratory disease threats, including pandemic influenza.
A University of Georgia study finds that rapid detection and aggressive education can dramatically reduce the size of emerging infectious disease outbreaks. The model developed by John Drake takes into account factors like information speed and public dissemination to predict outbreak sizes.
Restricting travel can significantly reduce the spread of infections like SARS, with a 50% decrease in infected individuals and over 80% reduction in affected municipalities. A ban on trips longer than 20 km would have an even greater impact, reducing the spread even if compliance is as low as 70%
Researchers at Brookhaven National Laboratory have characterized a component of the SARS virus that will be the target of new anti-SARS drugs. By determining the concentration at which individual proteinase molecules form active dimers, scientists can search for compounds that bind to the active form of the enzyme.
Household transmission accounted for 20% of SARS cases in Toronto. Risk factors included prolonged illness duration, poor hand hygiene, and inadequate respiratory protection.
A comprehensive review of SARS treatment efficacy has found no evidence that any treatments were effective in treating the virus. The review examined 54 SARS treatment studies and 15 in-vitro studies but concluded that none of the treatments were successful.
Scientists at the University of Texas Medical Branch have discovered a unique mechanism used by the SARS coronavirus to evade the immune system. The virus's nsp1 protein breaks down messenger RNA instructions that trigger the production of interferon beta, crucial for host immunity.
A Queen's University study compares two recommended protective clothing systems for health-care workers and found that one leaves workers prone to contamination at their forearms, wrists, hands, and necks. The more elaborate ensemble offers superior protection but is time-consuming to don and remove without errors.
Recent studies highlight the importance of effective personal protective equipment for healthcare workers in preventing respiratory infections. The articles discuss various personal protective systems and their effectiveness in reducing contamination and infection rates.
Two medical researchers, Chen Ding-Shinn and Rao Zihe, have made significant contributions to understanding infectious diseases and developing a comprehensive vaccination campaign. Mathematicians Jacob Palis and C.S. Seshadri are recognized for their groundbreaking work in dynamic systems and algebraic geometry, respectively.
Researchers developed a strategy combining two human monoclonal antibodies to combat SARS virus, offering potential breadth of protection against all strains and preventing escape variants. The study presents the characteristics of this antibody combination in cell-culture experiments.
Researchers have successfully imaged frameshifting in action, revealing how a virus-encoded RNA pseudoknot interferes with the translation of genetic code to allow HIV and SARS to express their own replication enzymes. This discovery may lead to designing new ways to combat virus pathogens.
Researchers have identified a molecular road map for designing new drugs to treat SARS-infected patients, potentially expanding treatment options beyond just COVID-19. The breakthrough was made by unlocking the three-dimensional structure of the papain-like-protease enzyme, essential for viral replication and infection.
Researchers at Scripps Research Institute have identified a new class of potent SARS virus protease inhibitors, offering hope for developing a possible drug treatment against the disease. These benzotriazole esters block the enzyme and are stable enough to be used in clinical trials.
The revised International Health Regulations require detailed reporting from countries, but regional governments may withhold data due to economic and federalism concerns. This 'federalism dilemma' poses a challenge for global pandemic planning and response.
The revised International Health Regulations require countries to report public health emergencies within 24 hours, but regional governments may resist disclosure due to economic concerns and federal scrutiny. This 'federalism dilemma' poses a challenge for successful implementation of the new regulations.
Researchers found that chest x-rays were a reliable predictor of mortality in patients with avian flu, with the severity of findings linked to patient outcomes. Five patients who survived still had abnormal lung appearances on CT scans after discharge.
A study published in Science reveals the structure of the SARS spike protein's interaction with its human receptor, ACE2. The findings provide insights into how small mutations can affect viral transmission and inform potential vaccines.
A new study reveals that SARS can infect brain tissue, causing severe central nervous system symptoms. The researchers found a high level of Mig, an immune system regulator, in the patient's bloodstream and brain, which may contribute to brain damage.
A team of researchers has developed an antiviral inhibitor that is active against several coronaviruses, including those causing the common cold and SARS. The compound targets the main protease enzyme, which is crucial for viral replication, and shows promise as a potential treatment for coronavirus-related diseases.
Researchers at the University of Pennsylvania School of Medicine have found that inhibitors of cellular enzyme cathepsin L prevent the SARS virus from entering target cells. This breakthrough discovery could lead to the development of new therapeutics against the SARS virus.
Researchers at UIC are developing protease inhibitors to block the SARS virus's advance, aiming to reduce viral load and ameliorate disease. The targeted approach, focusing on the backbone of enzymes, is designed to evade mutations that may hinder drug effectiveness.
A study found that family conferences in ICUs missed opportunities to discuss withholding or withdrawing life-sustaining therapy due to clinicians' failure to listen and respond appropriately. The missed opportunities fell into three categories: listening, acknowledging emotions, and addressing medical ethics principles.
Researchers analyzed 4,369 chest radiographs from 313 SARS patients and found that lung opacification levels on the seventh day could predict fatal outcomes. Patients with greater than 20% lung opacification were more likely to die from SARS, while those with less than 10% had a higher survival rate.
A recent workshop on SARS published in the American Thoracic Society's peer-reviewed journal emphasizes the need for antiviral drugs to prevent and treat SARS. The study also explores the association between obesity and asthma, finding a significant link in female children who become overweight during late adolescence and early adulthood.
Scientists adapted a molecular biology technique called mass spectrometry-based genotyping to quickly detect and analyze the SARS virus from clinical samples. This breakthrough provides valuable information on transmission routes and containment policies.