MI's herd immunity challenges: What we can learn from 2019's measles outbreak Talk to experts and they all say the same thing: Vaccination â or infection â is the only way out of this pandemic. The end goal? Herd Immunity. Posted at 6:21 PM, May 12, 2021 and last updated 2021-05-12 18:32:54-04 Talk to experts and they all say the same thing: Vaccination â or infection â is the only way out of this pandemic. The end goal? Herd Immunity. "Itâs what we need right now to really end this pandemic," said Dr. Aimee Gordon, an associate professor of epidemiology at the University of Michigan. "Thereâs two ways to get to herd immunity. Either thru vaccination, which certainly preferable, or infection."