Rebecca Bredow, from a suburb of Detroit in MI, had initially agreed with her nine-year-old son's father that the child would be immunised.
Now, he will have temporary custody to take the child to get vaccinated while she goes to jail.
Bredow was found in contempt of court, and McDonald said the boy would be vaccinated today based on the November 2016 agreement made between the woman and her ex-husband. She was found Wednesday in contempt of court for refusing to do so.
The mother-of-two was handcuffed in court and escorted out of the room by deputies.
She said that if her child would be vaccinated, she couldn't bring herself to do it because it goes against her beliefs.
Bredow's ex-husband wants their son to receive the vaccinations, but as primary caregiver, Bredow has declined.
If a parent does not comply with a school's vaccination guidelines, the child is not permitted to attend school and the parent can be jailed for the pupil's truancy.
Last month, she said that she and her son's father agreed to space out and delay getting their son vaccinated.
For that reason, many anti-vaccine parents choose to home-school their children, Mrs Fisher told the BBC.
Bredow said she opted for waivers available under MI state law, which allows for vaccine exemption based on religious, personal or medical beliefs.
Child immunisation rates in MI are among the worst in the nation, ranking 43rd among the 50 U.S. states, according to Mlive.
Rebecca Bredow is scheduled to appear in court Wednesday to find out if she will be behind bars for standing by her decision to not get childhood shots for her son.
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