Swine Flu

Having recently been to Texas, and San Antonio in particular, we are glad to have gotten in and out before the outbreak of Swine Flu. However, I am of "two minds" on the subject of the flu. Would it not be a good idea to be infected, have the flu, let it run its course - which is so far pretty mild in the US - and then enjoy the immunity to further infections it would provide. The other mind is of course to carefully avoid any known contact. That one is easy for I know no one with the disease - nor anyone who has been to Mexico or any other 'infected' locale.