Organ damage might affect over 50 % of post-COVID-19 individuals and perhaps more in adolescents and children.

Review of organ damage from COVID and Long COVID: a disease with a spectrum of pathology - PMC

Up to 70% of SARS-CoV-2 infected have reduced organ function for 4 months or more after infection, which leads to an increased risk of developing chronic diseases in e.g. lungs, kidneys and the cardiovascular system.

“Even though the etiology of COVID-19 is complex and there are multiple factors involved, decreased organ function has been associated with mitochondrial dysfunction for both the acute phase and post-acute phase of COVID”