Two. My niece and her boyfriend got Covid 12 months ago in London, she lost her sense of smell and has had stomach aches to this day, its was very severe last April until September and have lessened in the last six months. She resigned her job in November and is taking a sabbatical (she is young) and plans to start work again later this year.. How many teenagers do you know directly have been seriously ill? Remember schools have been open again for 2 months now.
A work friend of my 19 year old son who is now 20 years old has also had a very bad stomach. He was off-work for six months. He was the leader of their friendship group organising footie, nights out, also amateur boxing he was also charismatic supervisor at the venue where they work. He was complety incapable of any of this activities for six months, at one point his GP said he may be disabled for life. He is on medication and he is slowly recovering, a working part time. Being only 19 years old, and going from fit to invalid, has been a shock to him and his friends.