新型コロナウイルス感染症（COVID-19）に対するワクチン接種 — 小児におけるリスクと利点
https://link.springer.com/article/10.1007/s00431-023-05380-8

Conclusion: COVID-19 vaccination only provides a transient reduction in transmission. Currently, insufficient evidence exists to determine the impact of vaccination on post-acute COVID syndromes in children, which are uncommon.