Thinking about Vaccinations

A friend sent me this article today which really shook me up:

Vaccine Case: An Exception Or A Precedent?http://www.cbsnews.com/stories/2008/03/06/eveningnews/main3915703.shtml?source=search_story

When I responded, she sent me this article:
http://www.cbsnews.com/blogs/2008/05/12/couricandco/entry4090144.shtml

I've heard a lot of talk about the possible link between childhood vaccines and autism (a friend of ours who has an autistic child believes that there is an actual chemical tipping-point that occurs for autistic children--she has decided to delay vaccinating her second child). However, I hadn't checked out the list of ingredients in the vaccines our children have received (or the ones we received both as children and as adults on our way to Uganda).

The ingredient that is the most unsettling to me is "human albumin." Some websites suggest that it is derived from aborted fetuses. I haven't found anything offering proof except that a study was conducted in 1965 using a rubella vaccine cultured from an aborted fetus:

http://www.merck.com/product/usa/pi_circulars/m/mmr_ii/mmr_ii_pi.pdf
The first reference reads:
Plotkin, S.A.; Cornfeld, D.; Ingalls, T.H.: Studies of immunization with living rubella virus: Trials in children with a strain cultured
from an aborted fetus, Am. J. Dis. Child. 110: 381-389, 1965from an aborted fetus, Am. J. Dis. Child. 110: 381-389, 1965.

Now I'm wondering if human albumin doesn't come from an aborted fetus, where does it come from?

For a list of ingredients, click here:
http://www.cdc.gov/vaccines/pubs/pinkbook/downloads/appendices/B/excipient-table-2.pdf