Also, from memory, a short list of other goodies which are or have been known to have been along for the ride:

 - Tween-80 detergent which interferes with lipids helping the blood-brain barrier to do it's job.

 - SV-40 virus found in half of all cancers (polio vaccine.)

 - Pig viruses undetected until well after vaccine went into production and started to be injected into people (rotovirus vaccine.)

 - A wide variety of broken down cellular components from the culture medium (human and animal cell lines and tissues.)

 - mycoplasma species.

 - hCG (human chorionic gonadotropin) which was specifically developed to cause infertility in females and has been used covertly in tetanus vaccination programs from time to time.