vaccines

The Hague:  Europe is facing a new wave of Covid-19 driven by the highly-transmissible BA.4 and BA.5 subvariants of Omicron, the European Medicines Agency (EMA) has said. "We see a new wave of COVID-19 in many members of the European…

Doha: People with prior-variant infection were moderately protected from Omicron even after a year, but vaccine-induced immunity against new infection appeared to wane rapidly, finds a study. The findings are in line with studies on…

New Delhi:  Delhi on Friday reported a rise in new Covid cases in last 24 hours, at 1,042 against 965 on the previous day, while there were two fresh deaths, according to the Health Department bulletin. The number of active cases in the…

New York: The effectiveness of mRNA vaccines and antibody therapy is reduced against all three subvariants of Omicron, according to new research. The study by scientists at Columbia University and the University of Hong Kong showed that…

New York:  An international team of scientists has determined the precise structural changes in the spike protein of the Omicron variant. Their observations explain how the virus is able to evade antibodies against previous variants and…

Geneva: The World Health Organisation (WHO) has said that current Covid-19 vaccines may need to be updated if they are to provide continued protection against emerging variants, including Omicron. WHO's Technical Advisory Group on Covid-19…

New Delhi:  Delhi on Tuesday reported 5,481 fresh Covid cases, the highest single-day rise after May 16, when the city logged 6,456 infections. The new cases have pushed the infection tally to 14,63,701. According to a source in Delhi…

Ankara: The Covid-19 Omicron variant started to spread in Turkey, especially in crowded provinces, and it accounts for over 10 per cent of the new cases in these cities, the Turkish health minister has said. "More than 10 per cent of new…

New York: Vaccines developed by US drugmakers Pfizer, Moderna, Johnson and Johnson against Covid-19 have proved to be less effective against the new super mutant Omicron variant that has now spread to 77 countries. The Omicron variant,…

New Delhi: Stepping up vaccination as well as booster doses against Covid is necessary to counter the Omicron variant, top virologist Dr. Shahid Jameel said on Friday. According to Jameel, Director, Trivedi School of Biosciences, Ashoka…