I have heard from reliable sources that once you've had it, you are immune. But there are some flu-obsessed FReepers who insist otherwise and they'll argue relentlessly with you on this. (I just gave up.)
Did Tamiflu even kill off the cough quickly? My other symptoms only lasted a few days, but that cough went on for about three weeks.
I was so glad to finally get over that!
As far as i know you are immune for some time after you had it. but then again i guess you are only immune for the exact virus strain you had. and since its a given fact that the virus mutates you can easy get it again.
The cough is the one thing that’s lasted. I just can’t get rid of it but other than that I feel perfect.
There is a Tamiflu resistant mutation going around now...