When vaccines blunted their impact, we forgot the fear of the disease, and in our comfort, people began to forget why we needed the vaccines in the first place.
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When poliomyelitis was sweeping through the UK, I can still remember the terror on my mother's face, when one of her 3 boys showed any symptoms that could mean one of us had contracted polio!
I can also remember the relief on her face when each one of us had been vaccinated against it and the threat of losing a child to this awful disease receeded.
