“Omicron is less severe than Delta, however, the reduction of the severity range in clinical outcomes is only 16 to 85 per cent,” mentioned researcher Rong Xu from the Case Western Reserve University School of Medicine, Cleveland, Ohio.
“Furthermore, since so many unvaccinated children were infected, the long-term effects of Covid-19 infections on the brain, heart, immune systems and other organs of children remain unknown and worrisome,” Xu added.
For the research, the crew analyzed the digital well being data of greater than 651,640 youngsters within the US who had a medical encounter with healthcare organizationixations between 9/2021 and 1/2022, together with greater than 22,772 youngsters contaminated with Omicron in late December and late January — to greater than 66,000 youngsters contaminated when Delta was prevalent within the fall.
The research additionally in contrast the data of greater than 10,000 youngsters instantly earlier than the detection of Omicron within the US, when Delta was nonetheless predominant.
Children youthful than 5 are usually not but eligible for Covid-19 vaccines and have a low fee of earlier SARS-CoV-2 infections, which additionally limits their pre-existing immunity.
The crew examined scientific well being outcomes for pediatric sufferers throughout a 14-day window following SARS-CoV-2 an infection. Among the elements they reviewed have been: emergency room visits, hospitalizations, ICU admissions and mechanical air flow use.
Further demographic information evaluation discovered that youngsters contaminated with Omicron have been on common youthful – 1.5 years of age versus 1.7 years – and had fewer comorbidities.