Do you think vaccinations really work?

First, polio wasn't wiped out by vaccinations. Cases of polio were decreasing by the time the shot came out. Plus, everything that had to do with paralysis was filed under "polio", now we know there are other things that cause that. We do have cleaner living conditions, so we can fight off diseases better than before. Back in the day we used to go to the bathroom near our drinking water-no wonder why we got sick and spread disease. We also know about nutrition better and have better access to a wide variety of foods. My great grandparents had a farm, so all they could eat was potatoes, meat, and bread. I think that the people in third world countries have lowered immune systems because of their living standards, vaccinations aren't 100% effective so they won't always work. I wish that people that do these vaccinations for third world countries would try to change their diets, like feed them and make their countries cleaner-this would have a better effect on their life and diseases than a shot.

There may be other factors involved in deadly diseases, but in our country diseases like polio have been wiped out thanks to vaccinations. It may be that those people who received the vaccinations had weakened immune systems to begin with, but a good deal of those people who got the same vaccinations are still alive today.

It could be that the health of the people in third world countries is so bad that the vaccinations actually harms rather than helps them. I think that you need to be at a certain level of health in order for the vaccinations to help. That is just my opinion and it is not based on any medical facts just on my own observations.

There are quite a couple of vaccinations which last a life-time, some just last for a shorter while though and aren't full proof, in example think of the influenza shot the elderly get. In the third world countries you shouldn't really take every vaccination shot as ok though, many are expired or not even effective at all anymore with the virus strains going around today. So as viruses mutate they are being protected less and less by it.