Posted by: drtaqi on: November 6, 2009
بسم الله
Next time someone comes for a regular flu shot think: heterosubtypic immunity.
What does that mean?
Vaccinations give narrow immunity.
Natural infections give wider immunity (heterosubtypic immunity).
So?
Being infected by influenza A – naturally – give protection against realetd species i.e. possibly H1N1.
But being vaccinated stops you from getting natural infection and hence you are left without this [...]