http://www.cvhs.okstate.edu/index.php?option=com_content&task=view&id=43
7
OSU Laboratory First to Discover a Virus in United States - OADDL
Identifies A New Canine Parvovirus
STILLWATER, Okla.-a team of Oklahoma State University (OSU)
veterinarians, virologists and pathologists at the Oklahoma Animal
Disease Diagnostic Laboratory (OADDL) recently published a paper in the
Journal of Clinical Microbiology on their findings from a Canine
parvovirus (CPV) study. Led by Dr. Sanjay Kapil, the group is the first
to describe the CPV type 2c variant in the United States.
"We were quite fortunate to discover this variant," explains Kapil. "It
has been known for six years in Italy but nobody paid attention to it
here until we found it last year."
Shortly after Kapil joined the OSU Center for Veterinary Health
Sciences, he received a case at the OADDL. The adult dog had been
vaccinated multiple times and still became sick with Parvovirus.
"This was very unusual and we were totally surprised that it was CPV
type 2c, which had not been found in the U.S. until then," says Kapil.
"What was so interesting was that after we described this disease, we
ended up with samples from other locations here in the U.S."
A patent has been filed on the characteristics of the U.S. CPV-2c. The
team reports that 500 samples were submitted from locations in south
California to south Florida. The published paper has been presented at
national level meetings and internationally in Italy and Melbourne,
Australia. However, their work is not done.
"The team work was most important. Sometimes we received ten dead
puppies a day. We are working with several veterinarians and are
receiving samples from cases with a history of vaccine failure,"
continues Kapil. "Diagnostic laboratories need to be involved to
identify CPV-2c. The disease now exists in all countries except
Australia because of its geographical isolation."
According to Kapil, the disease presentation is different in that
normally parvovirus does not affect adult dogs only puppies. However,
since publishing their findings, the OADDL has received samples from
adult dogs in Minnesota.
"Veterinarians are confused because the in office diagnostic tests come
up negative," explains Kapil. "Clinically it looks like parvovirus so
they send it to us. The OADDL tests it and it is parvovirus. Now
world-wide (except for Australia), this particular variant can attack
the heart and intestines."
He goes on to say that the mortality can be quite heavy. One breeder
claims to have lost 600 puppies in one night. Without diagnostic
confirmation, it is not known if the cause was simply this virus or if
other factors were involved.
"We will continue to study CPV-2c. Through collaborations with others we
will search for more effective vaccines," he promises.
Of 80 cases tested by the OADDL, 26 were from Oklahoma puppies/dogs. Of
those 26, 15 tested positive for CPV-2c. For more information on the
Oklahoma State University Center for Veterinary Health Sciences, visit
http://www.cvhs.okstate.edu
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