We all know that immunisation will protect our kids (and ourselves) from terrifying preventable diseases.

But for Nicole Feeney, the protection offered to her children by vaccinations extends even further.

'Is your son up to date with his immunisations?'

Nicole wrote to tell us her story, " whooping cough, polio, chickenpox, measles. All terrifying, preventable diseases. Their increasing prevalence in society today is one of the most convincing arguments for pro-vaccinators everywhere. But I have another argument to consider. A very different argument to most we see throughout the news or splashed across social media. It's something that happened to my family...something that validated the importance of vaccinations for me, and I tell this story every chance I get, to anyone who will listen."

Read more:  Child of anti-vaxx parents spends babysitting money getting vaccinated.

Nicole says that she has always been pro-vaccination and that all three of her children are fully vaccinated. The thought of of her babies getting sick was simply too much for her to consider. Like all of us, she took every precaution she could to make sure they were as protected as possible.

But she could have never predicted this:

Have you ever experienced anything like this?