1 doctor weighed in:

Why does my child need several injections of the same vaccines?

1 doctor weighed in
Dr. James Ferguson
Pediatrics

In brief: Biological learning

The ability of the body to develop resistance to germs from a vaccine is directly to the maturity of the immune system. In the first months after birth, moms transfered immunity (placental)interferes with babies ability to make antibodies but they are very vulnerable so repeated vaccines are needed.
As they get past 5y or so, kids can hold on to the stimulation for many years like an adult.

In brief: Biological learning

The ability of the body to develop resistance to germs from a vaccine is directly to the maturity of the immune system. In the first months after birth, moms transfered immunity (placental)interferes with babies ability to make antibodies but they are very vulnerable so repeated vaccines are needed.
As they get past 5y or so, kids can hold on to the stimulation for many years like an adult.
Dr. James Ferguson
Dr. James Ferguson
Thank
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