Quote:
Originally Posted by A&A 
Unless the vax has worn off by then. The regular flu vax, for example, only has a "lifespan" of one year, if that.
|
we call it the 1918 pandemic flu because it circulated within a year. So even a year of immunity would have saved a lot of lives. Plus, the global population is much larger then it was in 1918--so it is that many more people to get sick today then then. The idea is to mitigate the impact of the flu by slowing/limiting it spread by protecting the population. Because, yeah, by next year it might be a totally different strain. But if you can vaccinate the population for a year against this strain, then it dies off.
Further, even if you only have immunity to that strain for a year, your immune system can recognize it and so, presumably, the effects won't be so bad even if the vaccine wears off, your immune system can recognize it.