Sorry mate, it appears your leave your jills in season and they will be fine arguement isn't really convincing anyone. As far as boosters go, have you ever heard of antigens? If you haven't, then read one of those books full of pretend illnesses you keep talking about and you will be able to answer your own question. Modern science has moved on, why don't you catch up.
your forgetting theres documented downsides to jill jabs ,spaying ect each to there own iam in the lea camp but thinking on a vas hob for next year but again read the documented downside on phantom pregnancys .science aint m