spartan231490 said:
WolfThomas said:
There's a bit of a difference between the flu vaccine and the immunisation schedule most countries have for children.
Most people by adulthood are immune to a large number of previously potentially deadly diseases such as polio, measles, whooping cough etc. Because of vaccines.
actually not really. Vaccines are not permanently effective. Technically speaking, you need to get boosters for most of them every 8-10 years if you want to keep your immunity. This is actually a point of great concern for some diseases because it has resulted in a large and growing portion of the public with no immunity to these diseases. Most of which are worse if you contract them as an adult.
It really depends on the vaccine. You need a booster for tetanus if you're exposed and havent had one for 10years and whooping cough has a booster in the 50-60s for most countries. Flu vaccine is new every year. Hep B immunity is something you can lose too.
However with a lot like HPV, Measles, Mumps, Rubella, Polio, Rotavirus, Pneuomococcal, Meningococcal Group C etc once you've done the required amount you're immune for life.
Still vaccines are awesome. Have saved more lives than any other medical intervention.