(WEAU)-- A new study by the Institute of Medicine reports that nearly half of babies born are late with at least one vaccine by the age of two.
But doctors say the danger with being late getting a vaccine is that it leaves your baby vulnerable to illnesses that are life-threatening.
Marshfield Clinic pediatrician Bill Barkley says the recommended time table for vaccines is set up based on how vulnerable babies and children are to illnesses.
“There are differences in the way the immune system works in babies and younger children that leave them more vulnerable without vaccines,” said Barkley.
Barkley says the most common life threatening illness infants get is whooping cough.
"After seeing what happens when the kids actually get the diseases we vaccinate against, I know the importance of the vaccines. My son suffered the whole time he was sick, he couldn't breathe and didn't have the strength to cry," said Lisa Huber.
Lisa Huber's son Abe died of whooping cough at just 3 months old. At the time Abe was too young to get vaccinated against it and in 2005 the FDA had not recommended a booster for adults.
“If you don't see it with our own eyes, it’s hard to believe,” said Huber.
Barkley says most of us have never seen the severe risks many illnesses like rubella and polio pose to children.
“The healthcare provider and the parents absolutely have the same goal. We want to keep the child healthy,” said Barkley.
That's why he says if parents are skeptical or against vaccines, it's so important they talk to their doctors about concerns.
“It's a conversation we want to have with parents,”