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Vaccines are not the disease itself. They make the body think that it is being attacked and it responds by making antibodies against that virus or bacteria. You can have some side effects where you may not feel well. These feeling is also a way the body fights diseases off. You know how you feel with cold infecting you. Part of that is the response you body makes when it is infected. A cold, flu, some other infection often have the same feelings (symptoms).
Zelda Heidenreich
Wiki User
∙ 12y agoMost all medications can affect each individual in various ways, vaccines are no different. Vaccines evoke an immune system response by introduction of the culprit organism to your body through the vaccination.
Some people have a stronger immune system with a stronger response to the antigen (pathogen) in the vaccine and that can result in an "over reaction" to the vaccine which produces some of the symptoms that they feel. In other people, the immune response is not strong enough.
For example, with the flu vaccines, people with immature, malfunctioning or suppressed immune systems, if given an LAIV (live attenuated influenza vaccine), may not be able to get an immune response and antibody production quickly enough to stop a few viruses from attaching to and reproducing in their cells. As the flu virus in the LAIV does this and cells are infected, they will be split open by the viruses and release the new virus particles. The cells die causing the symptoms.
Most times if there is a reaction to the vaccine that causes symptoms of illness, these symptoms last only a day, or up to three days, before the immune system is victorious in the battle with the weakened or dead organism in the vaccine and abates the mild symptoms. Symptoms can include such things as local injection site swelling, tenderness and redness or systemic symptoms such as fatigue, mild fever, headaches and/or body aches.
Wiki User
∙ 10y agoYou're not being injected with the bad stuff.
The stuff in vaccines:
-If a live vaccine - the ability of bacteria to do evil has been 'bred out', so it's generally harmless. It's also being injected into an arm, rather than a site of the body that the disease likes to hang out in, so it's even weaker in effect and your immune system can easily overpower it.
-If a protein vaccine - you're not being given the bad stuff, you're only being given chunks of the bad stuff. Like showing a photo to someone, instead of introducing them in person.
Wiki User
∙ 13y agoVaccines use a very weakened form of a virus that isn't potent enough to attack your systems but does function to make your body produce antibodies.
Wiki User
∙ 13y agoThe vaccine contains dead or weakened virus material. It is dead or too weak to hurt you, so you don't get sick.
Wiki User
∙ 10y agoDisease does not come after vaccination. You get immunity against the microorganism. That protects you from getting the disease.
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How can you not get sick?
Take vaccines and medicine's.-Ms.Aki
What impact did intoducing vaccines have on the society?
You can get cured after you have been sick
Are there any vaccines to cure Swine Flu?
No. There are vaccines for swine flu, but they do not cure it. They prevent it before you get sick from it because the vaccines will make you immune. Once you have it, there is no cure. There are medicines that can make you feel better and there are medicines that will make the symptoms less harsh and the duration shorter, but no cures yet. Get the vaccination if you have not yet when the next flu season is about to start in the fall (in the US).
What do vaccines do to keep you from getting sick?
A vaccine contains a small amount of that certain virus (or sometimes bacteria) that you are getting vaccinated for that has been inactivated or weakened so it can not make you sick. It gives your immune system a way to create a defense against that disease.See the related question below for more details about how vaccines work.
Should vaccines be given to people of all ages?
Yes to protect them from getting sick!
Why are vaccines given to healthy persons?
so they dnt hav achance of gettin sick
How do live attenuated vaccines work?
They are vaccines that contain viruses that have been treated to make them too weak to make you sick. The word "attenuated" just means "weakened". This type of live attenuated vaccine is what is approved for intra-nasal administration (nasal spray) of the flu vaccines in the US. The approved intra-muscular injection vaccine is made with totally inactivated ("dead") virus particles. See related questions below.
Did Marie curie make vaccines?
she did not
Why are vaccines used to kill bacteria?
Vaccines are used to make your body produce antibodiesand T-cells against viruses or bacteria! The Measles and Flu vaccines are viral. The Whooping Cough (Pertussis) and Tuberculosis vaccines are bacterial.
Why are vaccines good?
to make you healthy and also because people that do get vaccines have lower risks of death
What is the difference between nasal H1N1 vaccines and the injected H1N1 vaccines?
The only real difference is the medium that holds the virus in the vaccine, one is made for injection into muscles and the other is for using as a nasal mist. The current vaccination for H1N1/09 is available in both types of vaccines. The virus used in both vaccines is the same, except the nasal mist uses "live attenuated" viruses (they are still active whole viruses but have been treated to weaken them so they can not make an otherwise healthy person sick). The viruses in the vaccine for giving in a shot are totally inactive ("dead") or are just pieces of the virus particles instead of the whole viral organism, which also can not make you sick. See the related question below about which is better to use for your circumstances.
What do doctors give people who are sick from harmful microorganisms?
Doctors give people vaccines sometimes even penicillin to keep them healthy.
