The first link is to a very interesting
article on the development of the virus and the earlier flu like illness in the
La Gloria area, which was apparently linked to the pig units - government action
to spray the flies which fed on the manure lagoons.
In the article it refers to the following paper,
and quotes from it - some very useful informaation including the ability of
flies to spread the disease etc. The pdf link takes a little time to
work.
"a paper by an international team of scientists - including Jay Graham and
Ellen Silbergeld of Johns Hopkins - published in the May-June 2008 Public
Health Reports. The paper,"The Animal-Human Interface and Infectious Disease in Industrial
Food Animal Production: Rethinking Biosecurity and
Biocontainment"
(PDF), points to a concrete example of flies acting as a flu
vector:.."