What is Parvo?
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What does Parvo do?
Once canine parvovirus enters the body through contact with
fecal material containing the virus or fomites (objects, people, surfaces,
etc.) contaminated by the virus, it begins to replicate and spread throughout
the body. The virus has preferences for certain tissues in the body to infect,
including the small intestine, the bone marrow, and lymph tissue. The virus
infects and destroys cells in these tissues causing the clinical signs that we
commonly see. Because the small intestine is affected we see vomiting and
bloody diarrhea, along with non-specific signs of illness like lethargy,
anorexia, and fever. In a puppy these signs can rapidly progress to dehydration,
collapse, shock, and ultimately death.
Diagnosis
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Treatment
Parvovirus is treated with supportive care until the dog’s
immune system can fight off the virus. Aggressive treatment must be started as
soon as possible if parvo is suspected. Treatment includes fluid therapy,
anti-nausea medications, antibiotics to prevent secondary bacterial infection,
and nutritional support. There are potential complications of parvovirus that
may require surgical intervention.
Most deaths occur within 24-48 hours after clinical signs
appear. The risk of rapid death, severe complications, and the cost of
intensive hospitalization demonstrate why prevention of this disease is so
important.
Prevention
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Reducing exposure to the virus is also an important
consideration. Puppies should not be taken to parks, pet stores, puppy classes,
etc. before they are fully vaccinated. Prompt removal of fecal waste can help
prevent the spread of parvovirus, and areas where infected puppies have been
should be properly disinfected.
Contagion
Canine parvovirus is highly contagious. Sick puppies should
be isolated from other dogs as soon as infection is suspected. Please alert
your veterinarian to the signs that you are seeing before you bring your puppy
into the waiting room so they can take precautions to protect the other
patients. Puppies diagnosed with CPV are hospitalized in an isolation ward to
protect them and other pets in the hospital. CPV is not contagious to humans.
Learn more about
Shilo Gardner, DVM