You asked
I would like to know how many (numbers or %) of COVID-19 cases get further complications afterwards and/or serious after effects.
We said
Thank you for your request.
On 16 December 2020, we published all the analysis we hold to date relating to COVID-19 complications. This can be accessed via the following link: The prevalence of long COVID symptoms and COVID-19 complications.
Currently, we are unable to provide estimates of how many COVID-19 cases get further complications afterwards and/or serious after-effects. As stated in the publication, we are continuing to develop the analysis and methods, and these will be published in the new year. Consequently, we do not hold the analysis requested.