They have two layers. In the summer you want to brush out the insulting undercoat, but leave the topcoat as it protects against sunlight. A shaved husky will overheat in the sun and can easily get skin cancer! It also doesn't grow back properly. The husky in this picture will never have a normal coat again as it has his fur ruined for the rest of his life.
There isn't any valid medical reason that requires to shave a husky entirely. Only people who don't understand how their coat work do it. It is basically animal abuse and it makes me sad every time I see this picture.
It looks and sounds like hiccups to me? How long does he have it, does it go away? Of all the hiccups I've seen with dogs, over half are with puppies just because of how wild they are.