It is controversial whether viruses are alive, but like all living things they do evolve. This fact has become abundantly clear during the pandemic, as new variants of concern have emerged every few months.
Russia's Sputnik-V vaccine and its one-shot version Sputnik Light booster demonstrates high virus-neutralising activity (VNA) against the Omicron variant of COVID-19, providing a strong defence against hospitalisation, according to a study.
The protection offered by the Oxford-Astra Zeneca COVID-19 vaccine declines after three months of receiving two doses of the preventive, according to a study published in The Lancet journal.
The most likely order of symptoms that patients with COVID-19 experience is different for different variants of the SARS-CoV-2 virus, according to a study.
A newly identified drug may be used to effectively treat some patients hospitalised with COVID-19 pneumonia, according to a study published in The Lancet Respiratory Medicine journal.
With Christmas around the corner and COVID-19 case numbers rising, its important to keep getting tested when you have symptoms, have been exposed to the virus, or are going to a high-risk environment.
The Parker Solar Probe, launched by NASA, became the first spacecraft to fly through the outer atmosphere of the sun.
Scientists have developed a new molecule that attaches to the surface of the SARS-CoV-2 virus and prevents it from entering human cells and spreading the COVID-19 infection.
Not a day passes without a fascinating snippet on the ethical challenges created by "black box" AI systems. These use machine learning to figure out patterns within data and make decisions often without a human giving any moral basis for how to do it
Most young people under the age of 21 who develop suspected COVID-19 vaccine-related inflammation of heart muscle, known as myocarditis, have mild symptoms that improve quickly, according to a study.
Scientists have found a possible trigger behind the extremely rare blood clots linked to AstraZeneca and Johnson & Johnson COVID-19 vaccines, an advance that may help design new and improved preventives against the viral disease.
Since early in the COVID pandemic, the Network for Genomics Surveillance in South Africa has been monitoring changes in SARS-CoV-2. This was a valuable tool to understand better how the virus spread.
Data from NASA's Juno spacecraft is providing a deeper understanding of Jupiter's wondrous and violent atmosphere including its Great Red Spot, finding that this immense swirling storm extends much further down than expected.
People inoculated against COVID-19 are just as likely to spread the delta variant of the virus to contacts in their household as those who haven't had shots, according to new research.
COVID-19, which has affected the lives of people worldwide, has also caused a drop in the life expectancy in India by almost two years, a statistical analysis by scientists of the city-based International Institute for Population Studies (IIPS) said.