I'm just concerned because it's novel.
2009's swine flu was a pH1N1, the same as the Spanish Flu. As a result, vaccines were pushed out relatively quickly, and an existing vaccine already sort-of-worked. Non-essential flight was banned and cases were monitored tightly. H1N1 flus tend to kill the young and spare the old by way of making the immune system overreact.
But we already KNEW that because H1N1 is well documented. We knew what care to provide ASAP and as a result relatively few people died as were infected (The CDC estimates 59,000,000 infections and 12,000 deaths.)
With a novel illness that's hitting the young hard and the elderly harder, combined with the US being a top-heavy population age-wise, you're asking for trouble. I'd rather spare myself the hassle instead of having the bum luck to be in my 20's with a severe case or even have a mild case and get my elderly/smoking relatives seriously ill because I didn't have symptoms.