Answer:
I assume this is a statement and not a question if so same
Explanation:
Vaccination has been one of the most successful developments of medical science because for centuries it has been proven effective in diminishing the number of people at risk on certain kinds of diseases. How does vaccination help? Vaccines are contained weakened organisms that are injected to the body. This then boosts the immune system as they release a certain type of cells to combat with the foreign organisms. When the person is exposed to the same organisms again, he/she will develop immunity.
Infertility, impotence and sexually transmitted infections
False.
Using birth control may be affective for whom are in there twenties or older because, there bodies have already fully developed and the have a normal cycle.
Teen's that use birth control have a higher chance of getting pregnant because, there bodies aren't mature or is there cycle. This is why it's false.
In many cases females become pregnant even when on birth control, birth control can't prevent pregancy most of the time. It's not rare for a feamle on birth control to get pregnant.
