Many people are asking for details about the Minnesota children who contracted HIB infections. Here's about all we know:
Of the three children who were unvaccinated, two sets of parents refused to vaccinate. One set was choosing to delay vaccinations until 5 years of age. The child who died was one of these three children.
Of the two children who were vaccinated, one child was five months old, so he had only received two of the three doses of HIB vaccine needed to complete the primary vaccination series (he was too young to get the third dose, which is given at six months). The other child was a toddler who had completed his primary HIB vaccination series, but had an immunedeficiency, which left the child more susceptible to serious bacterial infection.
The Centers for Disease Control has posted an update on their website at www.cdc.gov/vaccines/ if you want to get more info.