Many severe long covid cases are benign in the acute phase. Multiorgan involvement seems to me like it 1) doesn't occur in the first week 2) doesn't occur in be

Many severe long covid cases are benign in the acute phase. Multiorgan involvement seems to me like it 1) doesn't occur in the first week 2) doesn't occur in benign cases. Also, from the abstract: This model could be used to identify individuals at risk of long COVID for trials of prevention or treatment and to plan education and rehabilitation services. So this is not about "first week of illness indicates COVID severity" per se, this is about creating a prediction model to triage cases. It makes sense to focus on early symptoms for that.