yep, something to watch.
I'm waiting on an airborne virus to make a minor mutation.
something that has a current vaccine and presents as the normal version - it will delay the alarm and normal quarantine process that protects us. if the first cases present like measles among anti-vacc. groups, most people will ignore it until it jumps to the general population. by then it might be too late if the bug has an R greater than 2 - if memory serves measles is over 10.