This information was on a thrust worthy news site Volkskrant.
There was more info about this case in the article (by google translate from Dutch) :
A week and a half ago, his 16-year-old brother Sehraz, the youngest member of a hairdressing family with four children, started to feel worse. "He couldn't eat well, just coughed all the time," said Shershah. "It was quite cold then, and he was in bed next to an open window. He said my head is very warm. " The doctor sent him home with a diagnosis of stomach flu, says the oldest brother. "A few days later, he was really short of breath and felt stabbing in his lungs. Then he went to the emergency room and was sent home again. Incomprehensible.
Only when my father called about how serious it was, was he admitted. " Hoping for a miracle In the hospital in Breda, Sehraz tested positive for corona. For the weekend he was transferred to the intensive care unit of the Sophia Children's Hospital in Rotterdam. There he is on artificial respiration. "He is kept asleep and given food through a tube," says his brother. "The doctors are waiting for him to start breathing independently again. They tell us: we don't know what's going to happen or how long this can take. It is unknown how this virus works. We as a family hope for a miracle and pray that my brother will be alright. " Jan Kluytmans, medical microbiologist at the Amphia Hospital in Breda, said in de Volkskrant on Saturday that it is striking in his hospital that there are relatively many admissions of relatively young people, of whom few underlying health problems are known. About one third of the admitted corona patients, like Sehraz, suffer from lung failure, according to Brabant doctors. A "shockingly" high number, according to intensivist Mark van der Kuil of the Bernhoven Hospital in Uden. "We do not know this figure in any clinical picture." The Sehraz family is surprised that they are not tested for the virus themselves, despite insistence, because they have no symptoms.
Other news
The hospitals-government are investigating now the contaminations and illnesses of younger people.
The government already closed all the schools from today for regular education. School’s use 2 days to make online education possible. Children of Parents who work in essential professions still can go to school but will not have normal education.
Creches, pubs, restaurants, sport schools, clubs are all closed too.