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 [...]

South African pharmaceutical company Aspen said Monday it was releasing its first batch of African-produced COVID-19 vaccines under a licensing deal with the US giant Johnson & Johnson. The Durban-based company said the first batch was leaving its factory in Gqeberha, formerly known as Port Elizabeth. In a statement, it described the release as [...]

Since the coronavirus pandemic shut down the world, scientists have clamored to develop vaccines to prevent the spread and medicines that will cure the sick. But a virus’ main goal is to replicate and infect, so the virus can mutate to survive and continue on its journey. Looking at the coronavirus, you’ll see it [...]

The highly transmissible delta variant of SARS-CoV-2, the coronavirus causing the disease COVID-19, is now present in 124 countries and will become the dominant strain globally in the coming months as it is outcompeting other variants, the World Health Organization said Wednesday. The variant was detected in 13 new countries in the week ending [...]