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How protective are the vaccines?

These vaccines are the best preventative measures available for protecting against infections such as flu, pneumonia and whooping cough.

Vaccines are not yet 100% protective and a minority of people may still develop an infection once they have received the vaccines.

People can be protected if those close to them (like friends and family members) and enough people in their communities (including healthcare professionals) are vaccinated, because it stops diseases from spreading. This means everyone will receive some protection, even those who are too young or unable to have a vaccination. This is called “herd immunity” and is very important for public health.