Population control. People would die of "natural causes" and no one would know the difference. The immune system would attack the healthy organs and it would be called simple organ failure.
The elites don't like it when their herds get out of control. It must be time for their "Great Culling" to begin.
You might want to tell your friends and loved ones to avoid any government sponsored or advocated medications. Things aren't always what they appear to be. (There's way too many baby boomers using up the socialists financial resources)
One issue.
If that was the case, why not let the antivaccine people win and send in the bug?
I am not a pro vaccine person. The current schedule is nuts. But I am very skeptical of some of the claims made by the anti vax people.
If vaccines are part of some big conspiracy to control population, they are failing horribly at it. Prior to vaccination and antibiotics, the average life span was under 40. With the introduction of those two technologies, infectious disease is no longer the #1 cause of death (it is still in the top ten), and people live long enough to get cancer and heart disease. The average life span, thanks to vaccines and antibiotics, is now close to 80--over double what it was before modern medicine.
If "the elites" are engaged in some big conspiracy to kill off the "excess population", they really need to come up with a better method than life-saving medical technologies.