Researchers at Newcastle University are involved in a study to understand the risks of COVID-19 transmission on public transport and to identify the best measures to control it. Known as Project TRACK (Transport Risk Assessment for Covid Knowledge), the study will conduct fieldwork on buses and trains in London, Leeds and Newcastle, including the Metro system in Tyne and Wear.
As President Trump claims that he is immune to COVID-19 and isolated reports emerge of reinfection, what is the truth about immunity to COVID-19? To date, there have been six published cases of COVID-19 reinfection, with various other unverified accounts from around the world. Although this is a comparably small fraction of the millions of people known to have been infected, should we be…
Innate immunity is the fastest-acting component of the immune system, but so far little is known about its role during infection with SARS-CoV-2. A few hours after an infection, the body emits an alarm signal, interferon, enabling cells that have not yet been infected to produce antiviral proteins. This phenomenon occurs well before the production of neutralizing antibodies. Scientists from the…
It is only 120 millionths of a millimetre in size but can bring entire countries to a standstill: the Corona virus. Even if it were to disappear one day, viral infections will still be among the most frequent and difficult-to-treat diseases in humans. Even decades of research have only produced a few standardized vaccines and strategies for treatment to combat just a small number of viruses. Nor…
Setting up ‘COVID-19 free’ hospital areas for surgical patients could save lives during the second wave of the pandemic – reducing the risk of death from lung infections associated with coronavirus, a new global study reveals. Researchers working together in Brazil and beyond found that that patients who had their operation and hospital care in ‘COVID-19 free’ areas had better outcomes.…
People with ‘silent’ COVID-19 infection have as much coronavirus in their noses and throats as those with symptoms, reveals research published online in the journal Thorax. Given how many of these people there are---a fifth of those infected, the study findings show--they may have a key role in driving the spread of COVID-19, warn the researchers, who go on to suggest that this warrants…
Researchers have shown why hospital germs adhere strongly to surfaces from which water simply rolls off, but bind so poorly to surfaces that are easily wetted by water.
Researchers at the University of Sheffield have developed a new compound that is able to kill both gram-positive and gram-negative antibiotic-resistant bacteria.
Rhinovirus, the most frequent cause of common colds, can prevent the flu virus from infecting airways by jumpstarting the body's antiviral defenses.
COVID-19 patients can suffer long-term lung and heart damage but, for many, this tends to improve over time, according to the first, prospective follow-up of patients infected with the coronavirus, presented at the European Respiratory Society International Congress. [1]
The healthcare system of Taiwan, renowned for its ability to tackle challenges, has held up very well during the COVID-19 pandemic. To underline the nation’s role as a healthcare innovator, the Taiwan External Trade Development Council (TAITRA) presented several of the most promising companies and their products in an exclusive webinar. The event showcased cutting-edge technologies as well as…
An infection with the coronavirus SARS-CoV-2 can affect multiple organs. With this in mind, researchers of the German Center for Neurodegenerative Diseases (DZNE) and Cornell University in the US have investigated cellular factors that could be significant for an infection. To this end, they analysed the activity of 28 specific genes in a wide range of human tissues.
A Hong Kong man who recovered from COVID-19 was infected again four-and-a-half months later in the first documented instance of human re-infection, researchers at the University of Hong Kong reported.
The airborne transmission of the coronavirus SARS-CoV-2 via aerosol particles in indoor environment seems to be strongly influenced by relative humidity. This is the conclusion drawn by researchers from the Leibniz Institute for Tropospheric Research (TROPOS) in Leipzig and the CSIR National Physical Laboratory in New Delhi from the analysis of 10 most relevant international studies on the…
In order to combat bacterial wound infections, Empa researchers have developed cellulose membranes equipped with antimicrobial peptides. Initial results show: The skin-friendly membranes made of plant-based materials kill bacteria very efficiently. If germs invade a wound, they can trigger a long-lasting infection that may fail to heal or even spread throughout the body, leading to…
The SARS CoV-2 virus which causes COVID-19 may have been named prematurely. As more has become known about the infection, the severe disease does not appear to be a respiratory syndrome at all. Patients who only have a respiratory illness tend not to have a severe condition, while patients who develop a severe condition tend to have non-respiratory conditions, primarily thrombotic or hyper-immune…
Scientists at Nanyang Technological University, Singapore (NTU Singapore) have developed a synthetic peptide that can make multidrug-resistant bacteria sensitive to antibiotics again when used together with traditional antibiotics, offering hope for the prospect of a combination treatment strategy to tackle certain antibiotic-tolerant infections.
Genes that are thought to play a role in how the SARS-CoV-2 virus infects our cells have been found to be active in embryos as early as during the second week of pregnancy, say scientists at the University of Cambridge and the California Institute of Technology (Caltech). The researchers say this could mean embryos are susceptible to COVID-19 if the mother gets sick, potentially affecting the…
The T cells, along with antibodies, are an integral part of the human immune response against viral infections due to their ability to directly target and kill infected cells. A Singapore study has uncovered the presence of virus-specific T cell immunity in people who recovered from COVID-19 and SARS, as well as some healthy study subjects who had never been infected by either virus.
Physical distancing measures, such as closing schools, workplaces, and public transport, and restricting mass gatherings, are associated with a meaningful reduction in new COVID-19 cases, finds a study published by The BMJ. The data, gathered from 149 countries and regions, also show that implementing lockdown restrictions earlier was associated with a greater reduction in new cases. “These…
It remains one of the key questions of the current corona pandemic: Why do people infected with SARS-CoV-2 experience varying degrees of COVID-19, the disease which it triggers? Researchers, led by Professor Mascha Binder from University Hospital Halle (Saale), have investigated more than 14 million receptor sequences of B and T cells, i.e. immune cells, obtained from blood samples of COVID-19…
New research from Karolinska Institutet and Karolinska University Hospital shows that many people with mild or asymptomatic COVID-19 demonstrate so-called T-cell-mediated immunity to the new coronavirus, even if they have not tested positively for antibodies. According to the researchers, this means that public immunity is probably higher than antibody tests suggest. The article is freely…
A plea issued by 239 scientists from around the world to recognise and mitigate airborne transmission of COVID-19 addressed to international health authorities is published in the journal Clinical Infectious Diseases. Led by internationally recognised air quality and health expert Professor Lidia Morawska from Queensland University of Technology (QUT), the appeal is to address the overwhelming…
An overactive defense response may lead to increased blood clotting, disease severity, and death from COVID-19. A phenomenon called NETosi is part of an immune response that becomes increasingly hyperactive in people on ventilators and people who die from the disease.
When infected by the new coronavirus, women may mount a more potent adaptive immune response than do men, a new study suggests. By comparison, the male immune response appears to progress less effectively, fostering inflammation that’s harmful to the body. This study is the first to delve into sex differences in how the immune system defends itself against the virus SARS-CoV-2. It could help…