If the vaccine only stimulates an immune response, why does it the patient continues to have immunity years la

Answer 1

Because we have memory cells.
The thing that is needed is the initial immune response, then our cells have specific cells that remember in the future, and those cells from that point on can mount a response to the now known bad buggie.

Answer 2

The immune response lasts considerably longer for many, and not so long for others. There are some vaccines that need to be renewed now and then. Tetanus is one such..it's good idea to revaccinate against tetanus every ten years. A tetanus "booster" is a good idea following any injury or wound that is contaminated - even if you had your most recent booster a year previously. OTOH, you should not need to be revaccinated for polio if you've had the complete series of vaccines previously. For the latest accurate information on immunizations, speak to your personal physician.

Answer 3

there are a number of things that affect or immune system stress, radiation , bad diet , lack of essential vitmins minerals , nutrients ingestions of things detrimental to our health ie drugs ,alcohol,tobacco,toxins low levels or no glutathione if you want to have a healthy immune system you must raise you intracellular glutathione levels that is the safest way hope this helps Gorbalizer