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Different vaccines have different risks. No medication is 100% without risk, and vaccines are included in that. However, there is always ongoing vaccination monitoring for problems and they would be removed from the market if there were proven adverse effects in more than a fraction of people vaccinated. The FDA has approved for use any that are used in the US and they evaluate all trials and studies for safety and effectiveness before approval. If vaccinations are recommended by your physician, who has already weighed the benefits vs the risks before recommending them, the vaccines are going to be safer than the disease will be if you get it because you did not get the vaccine.

For the flu vaccines in particular:

There is discussion of concerns about flu vaccinations online at various sources. One of those concerns is about traces of Mercury that are in flu vaccines from the preservative used in the vaccines called thimerosal.

There is no scientific data to support the concerns that some have voiced about the preservative thimerosal. There is no direct cause and effect data from scientific studies that link autism or other health problems to the thimerosal. The minuscule amount of mercury in the preservative's compound ingredients is no more than would be obtained through a meal of fish.

However, there are some manufacturers who have developed single doses of flu vaccine that will not contain the thimerosal, which may be available to those who have this concern. The larger 10cc vials will have to have the preservative added, but single dose vials and single dose pre-loaded syringes may be an option for some. Discuss this with your health care professional in advance of presenting for the vaccination if you have these concerns.

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Wiki User

12y ago
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Wiki User

14y ago

Injections are not always safe, but nothing in life is 100% safe. As long as the vaccine is given in a sterile manner, using all the standard precautions, they are 99+% safe.

People can have reactions to some components of the vaccine, which is why they are asked in advance if they have Allergies to eggs or other substances. Vaccines should not be taken while the person is sick with another disease. Live attenuated vaccines should not be given to immunocompromised individuals or pregnant women.

Reactions to vaccines are generally mild and consist of injection site pain or fevers.

Occasionally, with some vaccines (the type that contain live virus), the person receiving it can actually come down with the illness. Polio is such an example, but this is an incredibly rare outcome.

The worst thing that can happen to most people is that they do not become immune to the disease being vaccinated for, and then actually catch the disease at a later time.

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Wiki User

11y ago

depends but generally not

however that said smallpox and polio vaccines are usually not given in US now as the very tiny chance of them causing the disease is now larger than preventing these now nonexistent diseases.

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Izzy

Lvl 5
3y ago

Vaccines are bad 100%

The ingredients contain aluminum(which causes autism)

and baby tissues from thrown away babies, who would want that in you!? Bill Gates said himself, that vaccines are supposed to lower the population.

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Wiki User

11y ago

It slightly depends on the vaccine you are having. But mainly it is your mental attitude. It is best to stay calm and not think about it and it will be over before you know it.

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Wiki User

12y ago

Vaccines are good.

Modern vaccines do NOT cause autism in children.

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