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Oronasal exposure to feces contaminated with Canine Parvovirus, Intestinal…
Oronasal exposure to feces contaminated with
Canine Parvovirus
Virus replication in lymphoid tissue of the oropharynx, mesenteric lymph nodes and thymus
In utero
Myocardium
Myocarditis
Less than 6 weeks old
Cardiac arrhythmias
Sudden death
Dyspnea
Crying
Retching
More than 3 months old
Chronic myocardial fibrosis
Cardiomyopathy
Congestive heart failure
Diarrhea
Apparent recovery
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Pulmonary edema
Death
Neonate (less than 8 weeks old)
Less than 2 weeks old
Generalized
Acute death, 10 days of age
Postnatal (more than 8 weeks old) exposure
Regional lymph nodes, pharynx, tonsils
Marked plasma viremia (1-5 days post-infection)
Minimal pathology
Lungs
Liver
Kidney
Spleen
Myocardium
Lymphoid tissue
Immunodeficiency, thymic atrophy, generalized lymphoid depletion and lymphopenia
Thymus
Lymph nodes
Bone marrow
Infects the germinal epithelium of the intestinal crypts of the small intestines
Destruction and collapse of the epithelium
Impair normal cell turnover
Shortened villi
Increased permeability, decreased absorption
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Destroys mitotically active precursors of circulating leukocytes and lymphoid cells
Neutropenia
Lymphopenia
Enteritis
Vomiting
Acid-base electrolyte imbalance
Anorexia
Dehydration
Elevated rectal temperature
Lymphopenia
Gastrointestinal epithelium
Tongue
Oral mucosa
Ulceration
Vesicles
Esophagus
Skin
Ulceration of the footpads, pressure points and vaginal mucosa
Erythematous patches on the abdomen and perivulvar skin
Hypercoagulopathy
Catheters or visceral thrombi
Thrombosis or phlebitis
Intravenous catheter infection from GI or environmental origin
Intestinal damage
Bacteremia
Endotoxemia