Legally the government can compel you to get vaccinated and fine you for refusal. I wouldnt be surprised if the government demanded repayment from the stimulus checks if you dont get the jab.

Jacobson v. Massachusetts in 1905
According to wikipedia:

Justice John Marshall Harlan delivered the decision for a 7–2 majority that the Massachusetts law did not violate the Fourteenth Amendment.[2] The Court held that "in every well ordered society charged with the duty of conserving the safety of its members the rights of the individual in respect of his liberty may at times, under the pressure of great dangers, be subjected to such restraint, to be enforced by reasonable regulations, as the safety of the general public may demand" and that "[r]eal liberty for all could not exist under the operation of a principle which recognizes the right of each individual person to use his own [liberty], whether in respect of his person or his property, regardless of the injury that may be done to others."[2]