Flu Shot
Question: I am curious about how fast the flu shot starts to work for example, days, weeks, etc. and are there any side affects to the flu shot? Thanks

Answer: It is hard to quantify the earliest effective time of onset for influenza vaccine. It seems to have some effect in as little as one week to ten days and has peaked after two to three weeks. It tends to last about four to six months depending on the effectiveness of one's immune system. Some recommend a second immunization in especially at risk patients; but most people are protected with one shot. Since this is a virus, some people will become mildly "flu-like"; however, this is exactly the group of people who would be the sickest during a influence outbreak. Usually, the reactions are limited to local redness and pain. There have been cases of neurologic sequelae and seizures in the past; more modern vaccines seem to avoid this risk.

Flu Shot Benifits
Question:Could you please tell me whether or not there is any benefit to getting a flu shot? I am a 30-year-od male in good health, but I usually get a flu or cold during the winter. Thanks

Answer: The "flu" shot is recommended for certain groups of people. However, anyone can take the immunization. The recommendations are based on reducing early death. Since young healthy adults rarely die they are not specifically recommended. Doctors, nurses, and other health professionals are recommended to take the vaccine to avoid later transmission to patients. Police officers, fire fighters, etc. are recommended so that community services don't deteriorate during an epidemic. People over 65, those with asthma, emphysema, diabetes or other chronic diseases should recieve the vaccine. Lately, there have been no major adverse problems like with the "swine flu" vaccine. Taking the vaccine will reduce your time out of work or school and the overall toxicity. It may not entirely prevent the flu, just minimize the symptoms.
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