Tag: virus

France, Belgium ease virus curbs as US decision boosts travel hopes

France and Belgium further relaxed their COVID-19 restrictions Wednesday, allowing restaurants and cafes to serve indoors, while the United States eased travel warnings for dozens of countries as vaccinations boost hopes of a return to normal life. The pandemic’s impact on life around the planet was also illustrated Wednesday with a shake-up of the list

India virus surge drives record global daily cases

The world hit a new daily record of coronavirus cases due mainly to an explosion of the virus in India, but COVID jabs also approached one billion globally on Saturday, offering hope after months of pandemic misery. Cases topped 893,000 worldwide on Friday, with more than a third of the infections in India. Authorities there

Updated Moderna vaccines neutralize South African SARS-CoV-2 variant in mice

Researchers in the United States have conducted a pre-clinical study demonstrating the efficacy of two updated versions of the Moderna mRNA-1273 vaccine against variants of severe acute respiratory syndrome coronavirus 2 – the agent that causes coronavirus disease 2019 (COVID-19). Study: Variant SARS-CoV-2 mRNA vaccines confer broad neutralization as primary or booster series in mice

Researchers develop novel nanoadjuvant COVID-19 vaccine candidate

Finding effective and safe vaccines is crucial in the fight against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes the coronavirus disease 2019 (COVID-19). As a vital component of a subunit vaccine, the adjuvant strengthens the antigen-induced immune responses. Researchers at the National Center for Nanoscience and Technology of China, the

Researchers examine the evolutionary race between SARS-CoV-2 and human defenses

Analysis indicated the number of mutations in the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) receptor-binding domain (RBD) doubles every 72 days. As the coronavirus disease 2019 (COVID-19) pandemic continues infecting more people, SARS-CoV-2 is also evolving. Several new variants of the virus have now been discovered, some more infectious than the original strains. This

European countries tighten virus curbs, France ‘critical’

France, Belgium and Poland on Saturday tightened curbs as coronavirus cases surged in Europe while the Philippines prepared for a giant lockdown and Chile confined over 80 percent of its population. France has admitted that the situation is “critical” and added three more departments to the 16 already under tight restrictions. Around 20 million people

Research shows how mutations in SARS-CoV-2 allow the virus to dodge immune defenses

The vast majority of people infected with SARS-CoV-2 clear the virus, but those with compromised immunity—such as individuals receiving immune-suppressive drugs for autoimmune diseases—can become chronically infected. As a result, their weakened immune defenses continue to attack the virus without being able to eradicate it fully. This physiological tug-of-war between human host and pathogen offers

Natural virus-induced immunity protective against UK and South African SARS-CoV-2 variants in hamster study

As new variants of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continue to emerge, fueling the continued spread of the coronavirus disease 2019 (COVID-19) pandemic, a new study offers encouragement. Released as a preprint on the bioRxiv* server, the study reports the protection offered by antibodies elicited by natural infection against the newer variants

Speaking whilst infected with COVID-19 may cause it to spread

Thought LeadersDr. Keiko IshiiAssistant ProfessorAoyama Gakuin University In this interview, News-Medical speaks to Dr. Keiko Ishii about her research efforts during the COVID-19 pandemic and how speaking whilst infected can cause the virus to spread, and why wearing masks is so important. What provoked your research efforts into the COVID-19 pandemic? Our research started when

Putin says Russia vaccinated two million against virus

Credit: Pixabay/CC0 Public Domain President Vladimir Putin said Thursday that Russia had vaccinated more than two million people with its two-dose Sputnik V vaccine, while another two million had received their first dose. His comments came as the European Union began reviewing the Russian vaccine, moving closer to approving the jab in what would be

Time to implement measures preventing future viral zoonoses

The coronavirus disease (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), continues to spread globally, infecting over 114 million people. The virus first emerged in late December 2019 in Wuhan, China, from a potential animal host. Zoonotic diseases have caused outbreaks throughout history, claiming millions of lives. These diseases occur when pathogens

KAUST researchers develop a safe, fast and cheap testing method to detect viruses

A safe, fast and cheap testing method that uses magnetic nanoparticles to detect viruses in both clinical and wastewater samples has been developed by KAUST researchers. The centrifuge-free approach is compatible with magnetic bead-based automated systems that are already used to process hundreds of samples. Our silica magnetic nanoparticle-based workflow can be assembled from scratch