Here is an example of short affidavit:
VACCINE EXEMPTION FORM
[Insert your state code here. Find it at:http://home.san.rr.com/via/STATES/allstates.htm
I,____________________________, as the parent of the child _______________________ after considering the risks and benefits of the vaccine(s) do hereby decide not to vaccinate my child with the following vaccines:
Haemophilus influenzae type b
This is pursuant to my right to refuse vaccination on the statutory grounds of "other grounds". Pursuant to the statute I am providing a copy of the statement to the child's school administrator or operator of the group program pursuant to (insert code).
Parent/Guardian or Person in loco parentis
...and here is the long onehttp://www.vaclib.org/legal/refuselt.htm
I copied mine to WordPad & put in my state code at the top.It is an 8 page document, but can be edited to 5 pages.