Your health insurance company likes them.
If a health insurance executive compares the data of two populations–say, 100,000 people who have had flu shots and 100,000 people who haven’t–she finds something significant: the rates of illness and mortality in the flu-shot population are lower than in the non-flu shot population. That means fewer doctor visits for the flu shot population, and therefore less money the insurance company has to pay out to doctors and hospitals. It means greater profits for the insurance company if its subscribers get vaccinated.
Better to pay $30 for a subscriber’s flu shot this month than to pay perhaps hundreds, if not thousands, of dollars in medical bills for that subscriber later in the year.
The same logic applies on the personal level. Getting a flu shot this flu season ought to be a no-brainer. I had mine today, by the way. My kids and wife are getting theirs tomorrow.
How about you?
Prometheus Unbound 
I have a robust immune system but no way to combat narcolepsy, so no.
You may want to do something about all the Hispanics keeping farm animals in their back yards instead. That’s the conditions that make epidemics in the first place.