Do sensitivities to vaccinations run in families?

No: Although anyone can have a reaction to a vaccine, there does not seem to be a higher chance of serious reactions in relatives of those who had serious reactions themselves. Common vaccine reactions: pain (for almost all), fever (in some), swelling of the vaccination area (in a few) and swelling of the entire limb injected (very few). All these reactions vary depending on age and type of vaccine.

No: They do not. Current guidelines suggest that a reaction in a family member not be considered a problem w/ vaccinating, and no study has found a link for serious reactions among family members.

No: In my years of practice, I have not seen vaccine reactions run in families. Vaccine reactions appear to be uncommon and random. If a particular family had many members with hereditary weak immune systems, then those members might get reactions to live vaccines such as the chicken pox or measles vaccines.

No: Serious vaccine reactions are almost unheard of and certainly don't run in families.

No: There is no evidence that these run in families.

Yes: ....But not the way you might think. Allergies to foods (and thusly, vaccines) are most directly reported between siblings, not between parents. Any concern regarding an allergy to a vaccine should be discussed with your provider. For the purposes of vaccines, a hypersensitivity should be considered to be equivalent to an allergy.