Canine Infectious Diseases Flashcards
what family is canine distemper virus from?
paramyxovirus family
same family as human measles
what is the order in which the body systems get infected in CDV?
- respiratory system
- GI tract
- CNS
what is a common signalment for victims of CDV?
young, unvaccinated
what other animals can get CDV?
mustelidae and procyonidae
ferrets and raccoons
what are the ways CDV can be transmitted?
aerosolized respiratory secretions, fomites, in utero, wildlife
what clinical signs are often seen in patients who have CDV?
early signs: fever, anorexia, depression, ropey purulent nasal discharge, conjunctivitis
GI: diarrhea, vomiting, weakness/lethargy
lungs: coughing, sneezing, pneumonia, rhinitis, purulent nasal discharge
CNS: seizures (like chewing gum), muscle twitches, ataxia, hyperesthesia, paresis
what clinical signs are often seen in survivors of CDV?
hardening of footpads and nose (hyperkeratosis), enamel hypoplasia (because in most cases a puppy has a fever while enamel is developing)
how can you diagnose CDV?
complete blood count (CBC) since CDV causes intracytoplamis inclusions to develop in RBCs, and radiographs to check extent of pneumonia
what is the incubation period of CDV?
3-21 days
what treatments and nursing care is used for patients with CDV?
IVF, isolation, clean away nasal/ocular discharge, antibiotics so second infection can’t occur
what is the prognosis for CDV?
50% morality rate but depends on strain
patients can develop life-long CNS signs that may become fatal
what body systems does CPV infect?
GI system and lympathic system
is CPV an enveloped or non-enveloped virus?
non-enveloped which makes it very hard to kill when it is in the environment
what is a common signalment for victims of CPV?
6-24 week old puppies, non vaccinated
what are the top 3 breeds that are predisposed to CPV?
Doberman Pinschers, Rottweilers, and American Pitbull terriers
how is CPV transmitted?
fecal-oral, fomites
what is the incubation period of CPV?
4-14 days
what are the common clinical signs seen in patients with CPV?
diarrhea (profuse, liquid, hemorrhagic, distinct metallic odor), vomiting, anorexia, depression, extreme dehydration, sudden onset lethargy, rapid weight loss
how does CPV travel through the different body systems?
- virus ingested
- lymph nodes
- blood circulation
- bone marrow
- crypt cells in small intestine (kills them which kills off the villi and stops nutrients from being absorbed which causes diarrhea)
how can you diagnose CPV?
ELISA test (only works sometimes because it only scans for antigens and the antigens could be dead or inactivated already if the body is fighting), CBC because WBCs decrease
what treatments and nursing care is used for patients with CPV?
IVF, anti-emetics, antibiotics, analgesics, isolation, monitor for dehydration and electrolyte imbalances
what is the prognosis for CPV?
guarded in severely affected puppies, good for puppies treated promptly
what would you tell the owner of a patient with CPV about?
disinfection of their house/wherever the dog has been: bleach 5% sodium hypochlorite at dilation of 1:32 with 10-15 min contact time, isolate puppies if possible until 3 months and vaccinate, CPV is shed <2 weeks after infection
how can you prevent CPV?
modified live vaccine at 8, 12, and 16 weeks and can do an additional vaccine at 24 weeks too for predisposed breeds, take caution with puppies until after at least 2 vaccines
what family is CPV from?
parvovirus
what family is CAV1 from?
adenovirus
what is another name for canine adenovirus?
infectious hepatitis
what body systems does CAV1 affect?
liver, eyes, endothelium (cells that line blood vessels)
what is a common signalment for victims of CAV1?
< 1 year puppies, unvaccinated
what is the incubation period of CAV1?
4-9 days
how is CAV1 transmitted?
ingest infected urine, feces, saliva or infected respiratory secretions
what is the order of the body systems CAV1 affects?
- enters through oronasal cavity
- viremia (virus in blood circulation)
- liver
what are the common clinical signs of CAV1?
fever (>104 F), vomiting, diarrhea, lethargy, depression, abdominal pain/distention (enlarged), pale/petechia/icteric mm, tonsilitis, sudden death that mimics poisoning, seizures, coma, blue eye
what is blue eye and often does it develop in CAV1 patients?
corneal edema that develops in 20% of patients and usually develops 4-6 days after infection
how is CAV1 diagnosed?
bloodwork, radiographs, liver biopsy, viral culture
what treatments and nursing care is used for CAV1 patients?
IVF, isolation, blood transfusion, antibiotics, frequent feeding, restrict activity, nutritional support