Vaccines put either a dead or weak version of the disease into your body. Your bodies immune system will then attack the cells and form antibodies. The antibodies are then permanently in your system and if you get the disease again it will be able to fight it fact since it already has the cells in your body to fight it. When someones body is fighting a disease their immune system is already working at fighting what is in their body. Adding a vaccine could make them even sicker.
It probably won't last for years. The vaccination (at the most) only lasts 1 year. It doesn't really fight the virus. It prevents from getting sick with the virus. The vaccination contains lots of antibodies.
Vaccination against hepatitis A is unnecessary if you have already had the infection.
The use of aggressive vaccination.
yes
A vaccination generally contains a dead or weakened version of the virus the vaccination is against.
The influenza virus mutates so rapidly that a new "crop" requires a yearly vaccination. Each year you are getting vaccinated for a new virus.
There is no known vaccination for the virus yet. Only experimental procedures have been used.
Yes and No, it depends on the type of Vaccination.
The root word for the word "vaccination" is "vacca," which is Latin for cow. This term originated from the initial smallpox vaccination method developed by Edward Jenner using cowpox virus.
No, it takes the polio virus to cause polio. The polio virus can be defeated by having a polio vaccination.
Yes, because the vaccination you have had will kill off any rabies virus lurking in your body.
It's the injection (or the ingestion [swallowing]) of a related virus, a damaged virus, or a dead virus. Your body will respond (makes antibodies and white cells to attack them) and hopefully you will be "immune" to the "true" virus if it should attack you at some later date.