Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!shadooby!eecae!tank!tank.uchicago.edu!ogil
From: ogil@tank.uchicago.edu (Brian W. Ogilvie)
Newsgroups: sci.bio
Subject: Who Has Immunity?
Summary: Which animals have immune systems? Enquiring minds want to know.
Message-ID: <2600@tank.uchicago.edu>
Date: 4 Apr 89 17:06:44 GMT
Sender: ogil@tank.uchicago.edu
Reply-To: ogil@tank.uchicago.edu (Brian W. Ogilvie)
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Organization: History of Science, University of Chicago
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This is a question for any immunologist types out there:

How far down in the animal kingdom is some type of immune system
found? Do, say, mollusks have immune systems? What about annelids?

Also, do plants have any immune system?

I don't mean something like restriction enzymes in bacteria (which could
be construed as a basic, antiviral immune system: I'm looking for specific
responses to antigens.

Thanks for your time.