Vaccines are not intended to kill, cure, or treat the flu, bacteria, or a different viral disease. Instead, they are for preventing the infection in the first place.
A vaccination is an introduction of the infectious agent (either killed or weakened so it can't make you sick) before you become exposed or sick from it being in your environment. Your body attacks it as if it were the actual active and full strength organism and as if you had a real infection. Once your body has done that, you are immune to that infection for life. Some viruses, like cold and flu, are able to mutate easily and quickly and that sometimes requires a whole new vaccine to prevent the new version.
When you get a vaccination, you are injected with a very small amount of the bacteria or virus inside your body (or for some types of vaccinations you can drink the vaccine or sniff it into your nose from a mist). Your immune system sends cells to fight the disease. After a period of time, usually a week or two after the vaccination, your body has learned how to fight that particular infection any time the organism and you cross paths again. Because you have already technically gotten the infection (because of that little bit in the vaccine) you have become immune to it so it doesn't make you sick any more.
The vaccination is a weak or dead version of the disease so when its injected into the body, your body tries to fight it and becomes immune to it. But you can still get the disease but Its not as likely. Hope this helps :)
No, vaccines "warn" the immune system of the possibility of a disease causing organism. If the immune system later encounters the organism it was "warned" about then the immune system will attempt to kill that organism before it can cause disease.
Without the vaccine the immune system would not encounter and learn of that organism until it was already causing disease.
A vaccine is used to activate the body's own immune system; the vaccine does not kill the disease organism itself, but it directs the immune system to do so.
Vaccines don't kill viruses or diseases; they prevent disease before you are infected.
Vaccines prevent diseases, medications treat them.
Currently, all vaccines on the market today only exist for diseases caused by viruses- though not all diseases caused by viruses have a corresponding vaccine. Notably, the common cold (rhinoviruses) and AIDS (HIV) have no vaccines.
Prevention of infectious diseases when vaccines are available for them. There are vaccines available for many viral and some bacterial contagious diseases.
Yes
No. Vaccines are not used for treatment. They are used as prevention.
Side effects are generally mild, and occur sparingly. The diseases the vaccines PROTECT against, however, can leave people crippled, seriously ill, or can kill (but in a horrible, painful way). Believe me when I say, the vaccines are far better than the diseases they protect against, even if there are side effects.
true.
In hope to prevent diseases.
No, not at this point in time.
The introduction of vaccines to the United States helped by reducing the incidences of deaths by many diseases.
scew off