Omicron less severe but still threat to health systems

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Omicron is causing record numbers of cases around the world, and though it causes less severe Covid-19 experts warn this wave still threatens to overwhelm health systems.

Six weeks after it was first sequenced in southern Africa Omicron cases are smashing infection records with average new daily cases at nearly two million this week, according to an AFP tally.On Friday the French public health authority said the risk of hospitalisation was about 70 percent lower for Omicron, citing data from the US, the UK, Canada and Israel.

This would not only explain the variant's less-dangerous symptoms but also its ability to spread quickly through coughing and sneezing. Unlike previous variant waves, however, this one seems so far to be affecting regular hospital admissions rather than ICU capacity. A booster seems to increase antibodies, with both Pfizer and Moderna announcing positive results from recent tests.This does not mean vaccines are useless against Omicron: the body has a secondary immune defence called T-cell response, which fights the virus by attacking infected cells.A recent study from South Africa showed Pfizer/BioNTech remained effective at preventing severe Covid from Omicron even after just two shots.

 

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