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Children and adolescents vulnerable to Omicron subspecies – Chosun Ilbo (English version): Korea Daily

Studies suggest that Omicron variants are more than five times more contagious than the original strain of COVID-19 among children and adolescents.

The team, led by Chun June-young of the National Cancer Center and Kim Yong-dai of Seoul National University, conducted age-stratified studies in three different time periods (October-December 2020, before the delta variant was discovered in South Korea). analyzed the severity of their COVID infection. June-August 2021, when Delta was dominant, and January of this year, when Omicron began to spread.

They found that children aged 10 to 15 were 5.28 times more likely to be infected after the Omicron variant began spreading than before the Delta variant was discovered. The infection rate among those aged 15 to 19 was nearly five times higher.

However, it doubled for those in their 50s and above, and remained at 1.12 times for those in their 75s and above.

/ Union

Among children aged 10-19 years, the omicron variant was approximately three times more contagious than the delta variant, but only 0.93 times more contagious among those aged 75 years and older.

Until recently, it was assumed that children with immature upper respiratory tracts are more susceptible to Omicron variants, given that infection with Omicron variants is more likely in the upper respiratory tract than in the lungs.

“It’s important to vaccinate children,” the team said.

The study was published last week in the international journal BMC Medicine.

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https://english.chosun.com/site/data/html_dir/2022/11/29/2022112901426.html Children and adolescents vulnerable to Omicron subspecies – Chosun Ilbo (English version): Korea Daily

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