Of course.
Let’s see, just about any fabricated source is plausible.
The swine flu last about 9 days, with the first 2 days not having any symptoms manifest, but the virus still being highly infectious and communicable between humans.
Now let’s say we develop a swine flu shot to give everybody to anticipate the onslaught. Then there comes a risk of Guillain-Barré syndrome (GBS).
I spoke with a fellow whose wife had received some flu shots back in the early 80’s and then came down with GBS. The GBS had been attributed to the flu shot and her not having ever contracted the flu. Instead, the immune system went after her nervous system. It paralyzed even her eyelids, such that she couldn’t close them. Took them a year of therapy to retrain her how to roll over, crawl, and later walk again.
IMHO, the strain now exists and we’ll see it more and more. We will be fortunate, logistically, if it simply hits in a delayed fashion and not immediately with exponential growth throughout the population.