Goin back to generations past...the MAJOR difference is..
Children used to play outside and therefore built up an immune system having been subject to many different germs in the air.
There were not additives or preservatives..more natural foods etc.
And yes children did die and mainly because we did not all have the transport/ability etc to get to hospitals or doctors. Also medication was not as advanced.
Other things can cause deafness in a child
Acquired Causes
Acquired hearing loss is a hearing loss which appears after birth, at any time in one's life, perhaps as a result of a disease, a condition, or an injury. The following are examples of conditions that can cause acquired hearing loss in children are:
Ear infections (otitis media) (link to specific section above)
Ototoxic (damaging to the auditory system) drugs
Meningitis
Measles
Encephalitis
Chicken pox
Influenza
Mumps
Head injury
Noise exposure
Is there an immunisation for everything listed? should we wrap our children up in cotton wool with ear plugs in so they don't bang their heads or hear loud noises??