Normally not really. He came down with a highly contagious but pretty common respiratory infection. By itself, no big deal. Antibiotics and rest and you're good. BUT, since this kid seems to live by 'go big or go home', he also had the very beginnings of a case of bacterial pneumonia, and he has a very mild case of asthma. Add it all together and they had him on a 24 hour drip of antibiotics, asthma treatments every three hours, and he had that oxygen hose on his nose for two out of the three and a half days cause he just couldn't pull enough in on his own.
So yes and no. It could have been serious but they had it under control, just took some time to get him recovered enough that he could go home.
@Zelosse