human
What are the advantages and disadvantages of the new swine flu vaccine?
assistant
Advantages: 
1. It is a safe, effective way to protect against the swine flu virus.
2. It can help reduce the severity of symptoms if you do get infected.
3. It may provide better protection than previous vaccines.
4. It has been proven to be highly effective in protecting people from getting sick.
5. It does not contain thimerosal, which is a mercury-based preservative.Disadvantages:
1. It can cause side effects such as soreness or redness at the injection site, fever, fatigue, headache, and muscle aches.
2. Some people may experience allergic reactions to the vaccine.
3. The shot may take up to two weeks to become fully effective.
4. It is only available for those who are at high risk for serious complications due to influenza.