Consistent immunisation causes a herd immunity and protects those most vulnerable from contracting contagious diseases. These include very young infants, the elderly and those people with a compromised immunity such as cancer patients. A decline in vaccinations will result in diseases, once thought to be eradicated, causing epidemics once again. Failing to vaccinate may not only affect your children and loved ones but also the health of everyone surrounding you.
Remember, being anti-vaccine is equivalent to being pro-disease!