Haemophages as Antigen Vectors

[Andy Apel]

I'm assistant editor for Biotech Reporter.  While compiling information
on recent international patents for our readers, I came across the
following:

WO 9615237.  A system to deliver vaccines using a phytophagous or a
haemotophatous insect whose salivary glands comprise a gene capable of
expressing a desired antigen.

The owner of the patent is the University of Liverpool--but they won't
respond to my email.  Anyone out there know about this or how to find
out more?

Many thanks in advance.

--Andy.