I am in my 60s - I have known of only ONE person who had Hib, but it was called meningitis virus H at the time. If one googles "meningitis virus H", one gets lists of Hib information.
He was a little boy and he died. He was not breastfed. He had problems with diarrhea on and off.
He had three older brothers and a baby sister. None of them got his disease. They have all lived to adulthood. They are healthy.
Hib is a rare disease. How contagious can it be? Why is everyone vaccinated against it now? This is the ONLY case I ever heard of, and I have worked in public/private/religious schools since 1970.
To compare, I have known of two scarlet fever outbreaks, one as a parent, and one as a teacher. I never directly knew anyone who had scarlet fever. And, need I say it, there is no vaccine against scarlet fever.
"Vaccines are like a box of chocolates. You never know what you're gonna get - acute hemorrhagic edema of infancy, allergies, anaphylaxis, asthma, autoimmune disease, diabetes, eczema, petit/gran mal seizures, fibromyalgia, Henoch-Schonlein purpua, Dravet's Syndrome, Retts Syndrome, Sweet's Syndrome, Hughes Syndrome, encephalitis, speech delay, tics, neurological damage, coma, ADEM, ADHD, AFP, ASIA, CFS, CRPS, GBS, ITP, JPA, JRA, LGS, LKS, MS, OMS, ORS, PANDAS, PANS, PINTANDS, POF, POTS, RA, SIDS, SJS, SLE, SPD, SUDS, TPI, the disease one is being vaccinated against, or death."
Paraphrased from "Forrest Gump".
List from the drug companies' own package inserts that come with their product as required by law.