By: James Felton/IFLScience  Rebecca Bredow and her ex-husband are embroiled in a court battle over the issue. Her ex-husband, Jason Horne, believes that their son should be vaccinated against potentially life-threatening diseases, including measles, mumps, and rubella. Bredow feels differently. “I would rather sit behind bars standing up for what I believe in than giving in to something I strongly…