There have been several versions of H1N1 influenza over the years. But the most recent H1N1 flu was the pandemic "Swine Flu" A-H1N1/09. The monovalent (made with and for protection against a single virus) vaccine for it was made just before the flu season in fall/winter 2009-2010. Again, in the 2010-2011 flu season the same vaccine was included in the trivalent (made with three viruses) vaccine for the seasonal flu. If you had the monovalent vaccine in 2009, then you should still take the trivalent vaccine for the 2010 flu season. It will not hurt to get another dose of the H1N1/09 virus vaccine, it might enhance the immunity of some people, and you need to be vaccinated for the other two viruses that are most likely to be going around in this season.
no.
Yes. There is no longer a waiting period between when you get any influenza shot, including H1N1, and when you can give blood.
adjuvent
Yes. In fact, now the seasonal flu shots are combined with the H1N1 Virus flu shot, so you don't have to get two.
A person with Sarcoidosis not get a seasonal flu shot
Actually, it is more likely to catch the H1N1 in America than in Mexico. You should take that shot even if you are not traveling to Mexico soon.
Yes. You can also get a nasal version where you have to sniff it. Personally, the shot didn't hurt.
The shot has been tested just as all flu vaccines are and it perfectly safe.
Millions..Mainly kids and pregnant women, hospitol staff.
nooooooooooooooooo! please don't
If the correct test was done to confirm the H1N1, then, no there is no need to take it again. But if you are not absolutely sure that the test confirmed the A-H1N1/09 flu, then it will do no harm to take the vaccine. The only test that can be relied upon to be an absolute indicator of the vaccination is the RT-PCR test, and not the rapid tests done in the doctor's offices. you should have some immunity against 2009 H1N1 flu and can choose not to get the 2009 H1N1 vaccine.
If the flu is out there and you have not had the shot there is an increased chance you will get the flu. Kids have a smaller ability to resist the flu than adults