This past fall, the Allegheny County Health Department mandated new immunization guidelines for all students with the start of the 2008-2009 school year.  These new guidelines coincide with the Recommended Immunization Schedule for Persons Aged 0-18 of the Center for Disease Control.   (exemptions see below)        

Links to read more about it: 

Center for Disease Control - recommended immunization schedule

Allegheny County Health Department - clinic hours   Federally funded immunizations and administered free of charge to children through 18 years of age.

Exemptions to Immunization Laws

Medical exemption - when the physical condition of the child is such that immunization would endanger life or health. (requires Physician signature)

Religious exemption –when the parent/guardian adheres to a religious belief whose teachings are opposed to such immunizations. (requires parent/guardian signature)