flu question

[whysyn]

If you receive the flu vaccine, and are then exposed to the virus, will you still be capable of carrying the virus even though your immune system is "prepared" to prevent active infection of yourself?

Even though thiomersal has been removed from most childhood vaccines, is it still included in the 2007-2008 northern hemisphere flu vaccine? What about aluminum?

Is there any evidence so far that the three selected strains were guessed correctly this year?

Please provide links to studies, scientific information, etc.

Thanks!