Benefits and Risks of Vaccination
Vaccines can help to prevent certain diseases. In some cases, successful vaccination campaigns have, over time, even contributed to the elimination or near elimination of some diseases in the United States, such as polio.
Although infrequent, outbreaks of certain childhood diseases for which there are vaccines continue to occur. In order for vaccines to be most effective, an estimated 85% to 95% of the population must be vaccinated. Decreasing vaccination rates may contribute to outbreaks of diseases for which vaccines have been developed.
People with certain conditions may not be able to receive certain vaccines. Therefore, it's important for those around them to be vaccinated in order to help prevent the spread of diseases. This is known as herd immunity.
Like many medicines and medical procedures, side effects may occur following vaccination. They vary from vaccine to vaccine. The most common side effects may occur where the shot was given, such as pain, redness or swelling. Other common side effects are fever, headache, nausea, muscle aches and tiredness. Though uncommon, there are also some more serious side effects that can occur, such as allergic reactions to vaccines that would require immediate medical attention.
If you experience a side effect related to a vaccine, please contact your health care professional.(under the courtesy of http://www.webmd.com)