My latest information on the impact of long covid in children says that 1 in 25 are affected with serious health problems for more than 3 months after infection

My latest information on the impact of long covid in children says that 1 in 25 are affected with serious health problems for more than 3 months after infection. This is from a Swiss study of school children. It thought that narcolepsy much as fatigue is something that is easily missed when showing weakly. Tired kid?