Of
all the various brewing biological crises of our
time, the issue of emerging diseases is among the
more complex and far reaching. HIV/AIDS was unheard
of just two decades ago, as was the West Nile Virus.
The scientific community has been looking at how
and why these new pathogens make their way into
the human population, and has come up with little
in the way of answers.
Scientists
at the Wildlife Trust are beginning to make the link
between the emergence of new diseases and environmental
degradation. Wildelife trust is a conservation organization
with the mission of protecting endangered species from
extinction and their habitats around the world. The
groups' researchers have shown that habitat destruction
and species loss are ecosystem disruptions that can
alter disease transmission patterns.
"The loss of
species, the degradation
of ecological processes
and the contamination
of the web of life
are working in concert
to diminish human and
environmental health
on this planet," said
Dr. Alonso Aguirre,
director of conservation
medicine at Wildlife
Trust. "The global
loss of biological
diversity affects the
well being of both
animal and people."
Aguirre, a Veterinarian
originally from Mexico
with graduate degrees
in wildlife biology
and epidemiology has
been working as a wildlife
health specialist for
the last 15 years.
He spoke with The Earth
Times about his research
in the little known
field of conservation
medicine. In 1997 Wildlife
Trust, Tufts University
School of Veterinary
Medicine, and Harvard
Medical School's Center
for Health and the
Global Environment
established the Consortium
for Conservation Medicine
as an environmental
health collaborative.
With a mission of advancing
biological diversity
conservation and ecosystem
healthiness, the group
uses multi-disciplinary
approaches to relate
the health of humans
to the health of the
environment and animals.
By bringing together
veterinarians, physicians,
ecologists and other
conservation professionals,
we are attempting to
provide an ecological
context to health management.
For example, habitat
damage increases stress
in living things, causing
greater susceptibility
to disease across species
and geographic boundaries.
"Conservation
medicine does more
than recognize the
ecological context
of health, it may also
play an important role
in protecting bio-diversity,
human health, wildlife
and ecosystem health," said
Aguirre. We are trying
to use our training
as physicians and veterinarians,
and the health sciences,
like epidemiology and
public health, as tools
to protect bio-diversity."
An important part
of conservation medicine
is its trans-disciplinary
nature. It's a new
concept of trying to
develop the same language
among disciplines.
It works to bring veterinarians,
physicians, conservation
biologists ecologists,
even socio-biologists
and even politicians
together under the
same roof to solve
environmental problems.
"Four out of
five conditions in
humans are environmentally
related, so we have
already a connection.
And the connection
is health," he
said.
One
example is the West
Nile Virus, which
resurfaced again this
summer in New York.
When the first North
American case appeared
in 1999, public health
officials had trouble
identifying the disease. "If
we have a conservation
program in place in
this area, we could
avoid all those problems
of miscommunication,
lack of communication,
that led to a very
painful way of identifying
the disease," said
Aguirre. "This
was the first effort
at trying to bring
together public health
officials with zoos
and wildlife specialists,
because usually they
never talked before."
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