Future Immunologist needs help!

[Rami Rahal]

   I have always been interested in microbiology/immunology and hope
to pursue a degree in this field of study.  What I am unsure about is the
availability for jobs in this area and the possible salaries.  In
addition, do you need a medical degree to become an immunologist?  I
don't want to spend 4+ years at University and discover that my degree is
worthless.  If you could answer any of my questions, I would really
appreciate it.