The Omicron Variant Appears Less Likely to Cause Severe COVID-19 Illness Than Delta

Preliminary data suggest that people with the omicron variant of the coronavirus are between 50% and 70% less likely to need hospitalization than those with the delta strain, Britain’s public health agency said Thursday. The U.K. Health Security Agency findings add to emerging evidence that omicron produces milder illness than other variants—but also spreads faster and better evades vaccines. The agency said that based on cases in the U.K., an individual with omicron is estimated to be between 31% and 45% less likely to attend a hospital emergency department compared to one with delta, “and 50 to 70% less likely to be admitted to hospital.” [time-brightcove not-tgx=”true”] It cautioned that the analysis is “preliminary and highly uncertain” because of the small number of omicron patients in hospitals and the fact that most were in younger age groups. As of Dec. 20, 132 people had been admitted to U.K. hospitals with confirmed omicron, of whom 14—aged between 52 and 96—died. Scientists caution that any reductions in severity need to be weighed against the fact that omicron spreads much faster than delta and is more able to evade vaccines. The agency’s research said the protection a booster shot of vaccine gives against symptomatic omicron infection appears to wane after about 10 weeks, though protection against hospitalization and severe disease is likely to hold up for longer. UKHSA chief executive Jenny Harrie...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized COVID-19 healthscienceclimate wire Source Type: news