on the flu shot...No
on forcing life saving medical attention....Yes
If by this you mean life saving medical attention for those under the age of consent? Yes. I think they administer the treatment irregardless of parent consent. No child should have to suffer or die because of some crazy belief by the parent.
If over the age of consent, it's not the governments business what each of us decide to do.
Kill any one trying to do any thing government to your kids!