Vaccines are only effective on a herd basis. It is building herd immunity that makes the diseases and illness fall by the wayside.
Measles is a good example. A deadly disease that, around the turn of the 19th century, killed a lot of kids. Vaccine was developed, people got it because they didn't want their kids to die, measles was essentially wiped out of North America and much of the first world.
Now we get to the modern age where half-wit fucktards think they know better and start making shit up about links between autism and vaccines. They stop taking vaccines and encourage other stupid as fucking dirt retards to do the same. What happens? Measles makes a comeback.
Don't be a retard, kids.
