A study by the National Instituted of Health published on their October 13 2023 News Releases, noted
Study reveals how young children’s immune systems tame SARS-CoV-2
NIH-supported research finds key differences between children and adults with COVID-19.
Colorized scanning electron micrograph of a cell infected with the Omicron strain of SARS-CoV-2 virus particles (yellow and green), isolated from a patient sample.
New research helps explain why young children have lower rates of severe COVID-19 than adults. A study of infants and young children found those who acquired SARS-CoV-2 had a strong, sustained antibody response to the virus and high levels of inflammatory proteins in the nose but not in the blood. This immune response contrasts with that typically seen in adults with SARS-CoV-2 infection. Co-funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, the research appears in the journal Cell.