The indication of an Omicron decline has become a trend: New cases of COVID-19 in children were down for a second consecutive week in the United States, according to the American Academy of Pediatrics and the Children’s Hospital Association.
but the nearly 632,000 cases reported were down by 22% from the previous week and by 45% from what appears to be the peak of the Omicron surge during the week of Jan. 14-20, the AAP/CHA data show.
To put the effect of the Delta and Omicron variants into some sort of perspective, the total number of COVID-19 cases among children passed 5 million at the beginning of September 2021, about a year and a half into the pandemic. In the last 5 months, the cumulative count has more than doubled and now stands at 12 million, the AAP and CHA said in their weekly COVID report.
Hospital admissions and emergency department visits followed the same downward trend over the last week. The rate of new hospitalizations fell to 0.81 per 100,000 children aged 0-17 years as of Feb. 2 (down from a peak of 1.25 per 100,000 on Jan. 15), and ED visits with diagnosed COVID-19 dropped to 1.8% (peak was 14.1%), 1.9% (peak was 14.3%), and 3.4% (peak was 14%) of all visits for children aged 16-17, 12-15, and 0-11 years, respectively, the Centers for Disease Control and Prevention reported.
The vaccination response
The surge of infections brought about by the Omicron variant, however, did not translate into increased vaccination, at least for the youngest eligible children. Vaccine initiation rose slightly among children aged 5-11 in early and mid-January but, by early February, new vaccinations had declined to their lowest point since approval in early November of 2021, the AAP said in its weekly COVID vaccination report.
As a result, the 5- to 11-year-olds are well behind the pace set by those aged 12-15 for the first 3 months of their vaccination experience. Through the first 13 weeks after the COVID vaccine was approved for children aged 12-15 in early May, 44.5% had received at least one dose and 32.3% were fully vaccinated. Among children aged 5-11, the corresponding figures through 13 weeks were 31% and 22.5%, according to CDC data.
The vaccination reaction to Omicron was somewhat more robust for children aged 12-17, compared with the younger group, but initiations dropped at the same time that new cases began to decline. In terms of total volume, the response among 12- to 17-year-olds was much smaller than that seen in July and August of 2021 as the Delta surge was hitting the United States, the AAP vaccination report shows.
All those vaccinations add up to this: Over 16.8 million children aged 12-17 and almost 9 million aged 5-11 had received at least one dose of vaccine as of Feb. 7, which works out to 66.6% of the older group and 31.2% of the younger cohort. Almost 14.3 million (56.4%) of those aged 12-17 are fully vaccinated, as are 6.6 million (22.9%) of the 5- to 11-year-olds, the CDC said on its COVID Data Tracker.