It is early February 2010, so it is not too late now to get a seasonal flu shot if you have not had one for the 2009 - 2010 flu season. The seasonal flu shot protects against three more types of flu viruses. With the seasonal shot and the Swine Flu H1N1 vaccinations, you will be protected against the four types of flu that have been prevalent this season.
You really don't need it again this year if you had the vaccination last year and have an otherwise healthy immune system, since there is no indication that the H1N1/09 virus has mutated to a significantly different strain. However, it would not hurt at all to have it again, it just isn't necessary.
In the US and elsewhere in the Northern Hemisphere during the 2010-2011 flu season, the vaccine that was given in a separate vaccination last year for "swine flu" is included in the "regular" seasonal flu vaccine so that the most people possible have protection. Although the H1N1/09 vaccine is in it, there are also vaccines for the other two most likely types of influenza to be infecting people during the flu season in the vaccination. Therefore, you do need to take the regular flu vaccination as you would each year to protect you against the new expected viruses. You don't need a separate vaccination for swine flu.
It no longer needs to be taken as a separate vaccination in addition to the annual flu vaccination as it was initially. It is included in the seasonal flu vaccines in the US for the 2012-2013 flu season. It may or may not be in the formulation of the annual flu vaccine in future years, depending on the epidemiologist and virologist recommendations for each specific year that they determine by tracking the types of flu circulating in other areas of the world that are expected to make their way to us in the following flu season.
Immunization from a vaccination or from having had that exact type of flu will give you lifetime immunity. However, because viruses tend to mutate into other kinds of flu, your body may not recognize the germs as the same and then you would need protection from the new mutated virus, too. The 2010-2011 seasonal flu vaccination in the US contains the H1N1/09 vaccine along with vaccine for two other kinds of flu. If you had the swine flu vaccine last season, then it will not hurt you to take the vaccine again when you get the seasonal flu vaccination and it might help.
No, only one time should provide immunity for life. However, in the US for the 2010-2011 flu season, the vaccine for swine flu H1N1/09 is included in the "regular" flu vaccinations. If you had it last year, it won't hurt to have it again.
No, vaccination for the seasonal flu will not protect you from the H1N1 (swine) flu. ------------------------- Yes. In the 2010-2011 flu season in the US, the seasonal flu vaccine does contain the H1N1/09 swine flu vaccine along with two other flu viruses. There is no need to get a second flu shot this year like in the 2009-2010 flu season. It won't hurt to get it again if you got it last year or if you had the flu last year. It may even help, especially if you thought you had the H1N1 flu but it was not confirmed to have been that exact type of flu with lab testing at a special lab.
One H1N1/09 "Swine Flu" vaccination was determined to be enough in the 2009 clinical trials of the brand new vaccine for the brand new virus. If you had the vaccination it will provide immunity for life to that particular virus. If the virus mutates into a strain that is much different from the one in the prior vaccine, then there may be a need for a new vaccine for the newly formed virus. So far, that has not happened. You need a seasonal flu shot annually because of the problem with the easy mutations of flu viruses. In the 2010-2011 flu season, the vaccine for the swine flu is included with the other vaccines in the seasonal flu vaccinations, so if you did not get the separate shot last year, this year you will get lifetime immunity from that exact type of flu in the "regular" flu vaccination. (It won't hurt and might help to get that vaccine again).
Yes. For the 2010-2011 flu season in the Northern Hemisphere, the seasonal flu vaccination will include the vaccine for H1N1 (Swine Flu) along with the two other flu viruses that are anticipated to be prevalent this year. So only one flu vaccination is needed for this flu season. You can still take it even if you had the H1N1/09 flu vaccination last year or if you had the flu last year. It will not hurt to get it again and it will be the most recent strain of that virus, so in case the one you had was slightly different, this one will protect you from it, too.
Only If it has been more than a year since last shot!
No. It was proved to be a different strand of Swine flu.
Easter Sunday last fell on March 29th in the year 1970 and will again fall on the 29th March in the year 2043.
You can only get the same exact strain one time, but sometimes they mutate enough that your body no longer recognizes them as the same virus you had and then your prior immune response won't protect you from the new version until you are vaccinated or exposed again to the new mutated virus. Other times the mutations are not big enough changes to make them unrecognizable though, and so our immune systems do know how to attack and inactivate them. For now, the strain of swine flu that caused the pandemic has not mutated to significantly different strains, and so the vaccine this year for it is the same as the strain in the vaccine last year. It is included in the trivalent seasonal flu vaccine for 2010-2011 flu season in the US. If you got the vaccination last year, you should still get the seasonal flu shot, because it also contains the other two likely to be spreading types of flu. It won't hurt to get a second dose of the H1N1/09 vaccine in any way, so just in case you had a different flu and not the pandemic swine flu before (you can't be sure unless you had specific lab tests to confirm the specific type), you will be best protected by getting the trivalent vaccine this year (trivalent just means it contains vaccine for three flu viruses).
Easter Sunday last fell in March in the year 2008 on the 23rd. Easter Sunday will again fall in March in 2013 on the 31st.
Good Friday last fell on March 31 in 1972. Good Friday will again fall on March 31 in 2051.
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