The HPV vaccine is an intramuscular injection. This means that the injection is given directly into the muscle tissue. The HPV vaccine comes in a series of three shots that are given over a period of six months. The vaccine is especially recommended for girls between the ages of 10 and 12 as it is important to get the vaccine before engaging in sexual contact.
How it Works
HPV vaccinations use particles that are similar to the actual human papillomavirus. These particles are injected into the body, fooling the immune system into thinking that it has become infected with a foreign agent. The immune system reacts by creating antibodies against the virus to kill it. An antibody is a protein created by the body to fight off a specific antigen (foreign particle or disease). These antibodies remain in the immune system's memory in case a similar infection occurs in the future. This means that if the woman is exposed to HPV at a later time, the antibodies from the virus-like particles would remember the virus and be able to quickly fight off the actual HPV disease.
Success Rate
The vaccine has a 100 percent success rate for strains 6, 11, 16 and 18 of the HPV virus. Unfortunately, the vaccine does not work for women already exposed to HPV. If you are already infected with one strain of HPV, it may show limited success in helping prevent infection from the other strains of the virus, but not the strain you are already infected with.
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