The pandemic is not coming to an end soon — given that only a small proportion of the world population has been vaccinated against Covid-19, a well-known epidemiologist told CNBC. Dr. Larry Brilliant, an epidemiologist who was part of the World Health Organization’s team that helped eradicate smallpox, said the delta variant is “maybe [...]

Researchers in Singapore have conducted a study showing that the messenger RNA- (mRNA) based coronavirus disease 2019 (COVID-19) vaccines developed by Pfizer-BioNTech and Moderna are highly effective at protecting against symptomatic and severe disease following infection with the rapidly spreading B.1.617.2 (delta) variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The team conducted [...]

Unlocking the mysteries of the exact origins of SARS-CoV-2, the virus that causes Covid-19 and launched a global pandemic in March 2020, has become one of the most burning questions in the scientific community. But the effort, like so many other coronavirus-related issues, has become hotly contested, fraught with implications for international relations and, [...]

Late last year, Shi and his team announced that they'd extracted tiny, but extremely powerful, SARS-CoV-2 antibody fragments from llamas, which could be fashioned into inhalable therapeutics to prevent and treat COVID-19. Since then, preclinical studies have verified that the potent nanobodies prevent and treat severe COVID-19 in hamsters, reducing virus particles in their respiratory tracts [...]

Summary: 60% of 400 coronavirus survivors experienced lasting cognitive impairment, a new study reports. Cognitive problems were found in those who experienced mild-to-moderate COVID symptoms, as well as those who experienced more severe symptoms. One in three of the survivors experienced severe cognitive symptoms, akin to dementia. In a sample of over 400 older adults [...]

After months of struggle, the U.N.-backed Covax alliance will soon have many more doses, promising relief for vaccine shortages in poorer countries. But it faces a deepening crisis: difficulties getting shots into arms as the Delta variant spreads. Deaths from Covid-19 were surging across Africa in June when 100,000 doses of the Pfizer-BioNTech vaccine [...]

Boosting function of natural killer cells with magnetic nanoparticles could make cancer immunotherapy more efficient, according to a Northwestern Medicine study published in ACS Nano ("Magneto-Activation and Magnetic Resonance Imaging of Natural Killer Cells Labeled with Magnetic Nanocomplexes for the Treatment of Solid Tumors"). This method could unlock the potential to use natural killer [...]

Researchers in the United States have conducted a study showing the difference in antibody evolution following vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) between people who have not previously been infected with the virus and those who have. The SARS-CoV-2 virus is the agent responsible for the ongoing coronavirus disease 2019 (COVID-19) [...]

When covid-19 struck Europe in March 2020, hospitals were plunged into a health crisis that was still badly understood. “Doctors really didn’t have a clue how to manage these patients,” says Laure Wynants, an epidemiologist at Maastricht University in the Netherlands, who studies predictive tools. But there was data coming out of China, which [...]

Pfizer found to be 88 per cent effective at preventing symptomatic disease from delta variant. Two doses of Pfizer-BioNTech or AstraZeneca-Oxford's COVID-19 vaccines are nearly as effective against the highly transmissible delta coronavirus variant as they are against the previously dominant alpha variant, a new study shows. Officials say vaccines are highly effective against [...]