Its world wide. In the UK the increase was analysed and its all due to increased sickness. Teachers and students are sick twice as much as they were before the pandemic begun and teachers are the second hardest hit group by Long Covid behind medical staff. The official count of UK children with Long Covid is 68,000 but its likely much higher than that since the NHS is mostly diagnosing Long haulers with anxiety (hence why the press has been big on all the increase in mental health diseases).
Its just Covid, this is what living with this disease looks like.
Its just Covid, this is what living with this disease looks like.