So, really....H1N1 IS different.

The CDC says that this mutation has been affecting children and young
adults, like the Pandemic of 1918

Elderly have been less affected. The stronger the immune system, the more
like you will have a cytokine storm.

The pandemic of 1918 was H1N1, which is an entirely different flu germ.

"In the fall of 1918 the Great War in Europe was winding down and peace was
on the horizon. The Americans had joined in the fight, bringing the Allies
closer to victory against the Germans. Deep within the trenches these men
lived through some of the most brutal conditions of life, which it seemed
could not be any worse. Then, in pockets across the globe, something erupted
that seemed as benign as the common cold. The influenza of that season,
however, was far more than a cold. In the two years that this scourge
ravaged the earth, a fifth of the world's population was infected. The flu
was most deadly for people ages 20 to 40. This pattern of morbidity was
unusual for influenza which is usually a killer of the elderly and young