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34 THE RURAL VOICE
a co-operative effort to control
Salmonella. "I think the answers are
here to find how to control it. I think
as we solidify these partnerships we
can eliminate or control it to a limit
that is not a public health threat," he
said.
Dr. Bob Friendship of the
University of Guelph brought good
news in his study of 80 sentinel
farms in Ontario to study the
presence of Campylobacter, a
bacteria that doesn't seem to cause
disease directly in pigs, but which is
the most frequently -diagnosed food-
borne bacteria causing human illness.
Symptoms in humans most often
include mild to severe diarrhea,
fever, nausea, vomiting and
abdominal pain, though people
generally get well on their own
without treatment.
While 99 per cent of the 1200
manure samples taken from
pigs on the farms had
Campylobacter, only one sample
contained the Campylobacter jejuni
strain usually affecting humans (and
poultry).
What's more the researchers found
little resistance by the Campylobacter
in their samples to an important
group of antibiotic drugs, unlike
similar studies in Europe. A recent
study in Spain found 100 per cent of
the Campylobacter isolated were
resistant to antibiotics.
"Overall this is a good news
story," Friendship said.
New forms of E. coli in pigs are
also a concern to scientists, according
to Dr. Carlton Gyles of the
department of pathobiology at the
Ontario Veterinary College. Gyles
said researchers began looking at the
genetic structure of 0149:K88 E.
coli, the most common form of E.
coli causing diarrhea in weaned pigs,
after recent severe outbreaks.
Comparing the genetic structure of
the bacteria that has been around
since the 1960s with that infecting
pigs in the recent outbreak. They
found out that the structure of this
new form of 0149:K88 E. coli had
changed and grown a cluster of genes
more similar to the infamous E. coli
0157:H7 that affect cattle and killed
seven people in the Walkerton water
tragedy. Like that variation of E. coli,
this new swine version produces
enzymes that create more toxins