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Covid-19: How Omicron infection turbo-charges vaccinated people’s immunity

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People who are vaccinated and then get infected with Omicron may be primed to overcome a broad range of coronavirus variants, early research suggests. A pair of studies showed that infection produced even better immune responses than a booster shot in vaccinated patients. Teams from Covid-19 vaccine maker BioNTech SE and the University of Washington posted the results on preprint server bioRxiv in recent weeks. The findings offer a reassuring sign that the millions of vaccinated people who’ve caught Omicron probably won’t become seriously ill from another variant soon -- even though the research needs to be confirmed, especially by real-world evidence. “We should think about breakthrough infections as essentially equivalent to another dose of vaccine,” said John Wherry, a professor and director of the Institute for Immunology at the University of Pennsylvania who wasn’t involved in the research but reviewed the BioNTech study. That could mean that if someone had Covid recently, the...

omicron: Omicron can be more lethal for children than Delta: Experts

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NEW DELHI: Amid the rise of the Omicron variant of the coronavirus, health experts on Saturday warned that this variant may lead children to witness more problems as compared to the Delta variant. According to experts, the Omicron variant can be more lethal for children as this variant primarily affects the upper respiratory tract and children have higher respiratory rates than adults making them more susceptible to agents in the air. "Children's respiratory tract is smaller than adults and this new variant is majorly affecting upper respiratory tract among infected patients," Animesh Arya, Senior Consultant in Respiratory Medicine, Sri Balaji Action Medical Institute, New Delhi said. "Hence it can be said that there are possible chances of children witnessing more problems, which may be of concern but not lethal than adults," Arya added. Tushar Tayal, Senior Consultant, Internal Medicine, Narayana Superspeciality Hospital, Gurugram said that as compared to ...