What an interesting topic! This has been a very informative and thought provoking read. Personally, I am all for immunisations and wouldn't even consider not immunising....but a number of comments i have read have certainly made me think about when is the best time to give the vaccines and i will be doing further research on this. It is true that some vaccinations wear off, it is also true that some people don't build up adequate immunity from the vaccination and can still contract the disease/illness.....this happened to me....i was vaccinated against pertussis as a child but contracted the illness when i was 15 years old. I don't know if the vaccine wore of over time or if i was unlucky but i do have to wonder that if i hadn't been vaccinated, could i have contracted the illness when i was younger? Believe me, at age 15 you remember what it was like and it was very scary - not being able to get a breath, there was many a time where i thought i was going to pass out due to lack of oxygen - much to my mothers distress, but I was 15 and I knew that i had to fight to overcome the cough and breath or that is what would happen. Would a 3 year old know to do this? I don't know but it scared me half to death and if there is anyway possible that I could prevent or reduce the risk of my child getting this particular illness, along with all the others, then i will do whatever i need to do. We are lucky to live in the environment and with the conditions that we have - clean water, nutritious food and great health care, but it is immunisations in combination with this that have led to terrible diseases being removed from this country - eg. small pox, polio. As has been mentioned, there are diseases in other countries that we in australia are lucky enough not to have to worry about - due to vaccination - but if people stopped being vaccinated and then someone came to australia with this disease OR a non vaccinated person went to another country contracting the disease and then came back to australia, this could be passed onto other non vaccinated people and then the disease comes back into australia - I really hope that this doesn't happen. Definitely a topic that being informed allows an appropriate decision to be made....Now where to find all the information i want....