Blackwell's Five-Minute Veterinary Consult Clinical Companion: Canine and Feline Infectious Diseases and Parasitology, Second Edition takes a user-friendly alphabetical format to cover a wide spectrum of canine and feline infectious diseases and parasite-related disorders. Part of the popular Five-Minute Veterinary Consult series, it includes information on many specific organisms and diseases, from amebiasis and Ehrlichiosis to rabies and ticks. The text also provides extensive differential diagnostic lists, as well as information on drugs, dosages, toxicity, treatment options, diagnostic testing, immunization recommendations, and cytological appearance.

The Second Edition presents three new chapters oncanine influenza, sarcoptic mange, and staphylococcal pyoderma. Blackwell's Five-Minute Veterinary Consult Clinical Companion: Canine and Feline Infectious Diseases and Parasitology, Second Edition is an ideal quick reference for veterinary professionals and students.

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Yes, you can access Blackwell's Five-Minute Veterinary Consult Clinical Companion by Stephen C. Barr, Dwight D. Bowman, Stephen C. Barr,Dwight D. Bowman in PDF and/or ePUB format, as well as other popular books in Medicine & Veterinary Medicine. We have over one million books available in our catalogue for you to explore.

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Medicine

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Veterinary Medicine

Chapter 1

Amebiasis

DEFINITION/OVERVIEW

Facultative parasitic ameba that infects people and nonhuman primates (including dogs and cats)
Found primarily in tropical areas throughout the world, although still occurs in North America

ETIOLOGY/PATHOPHYSIOLOGY

Entamoeba histolytica—Dogs and cats become infected by ingesting cysts from human feces.
Encystment of trophozoites seldom occurs in dogs or cats, so they are not a source of infection.
One of the few organisms transmitted from man to pets but rarely from pets to man
Trophozoites (the pathogenic stage) inhabit the colonic lumen as commensals or invade the colonic wall, but can disseminate to other organs (rare) including lungs, liver, brain, and skin.
Trophozoites damage intestinal epithelial cells by secreting enzymes that lyse cells and disrupt intercellular connections.
Certain bacteria and a diet deficient in protein increase the virulence of the ameba.
The host's immune response to invasion exacerbates pathology.
Colonic ulceration results when trophozoites in the submucosa undermine the mucosa.
Acanthamoeba castellani and Acanthamoeba culbertsoni—free-living species found in freshwater, saltwater, soil, and sewage; can infect dogs
Infection with Acanthamoeba spp. thought to occur by inhalation of organisms from contaminated water or colonization of the skin or cornea. Hematogenous spread or direct spread from the nasal cavity through the cribriform plate to the central nervous system may occur, resulting in a granulomatous amebic meningoencephalitis.

SIGNALMENT/HISTORY

Mainly young and/or immunosuppressed animals are infected.

CLINICAL FEATURES

Dogs

E. histolytica infections are usually asymptomatic.
Severe infections result in ulcerative colitis to cause dysentery (may be fatal).
Hematogenous spread results in organ failure (invariably fatal).
Granulomatous amebic meningoencephalitis (caused by Acanthamoeba spp.) causes signs similar to distemper (anorexia, fever, lethargy, oculonasal discharge, respiratory distress, and diffuse neurologic abnormalities).
Syndrome of inappropriate secretion of antidiuretic hormone has been reported in a young dog with acanthamebiasis causing granulomatous meningoencephalitis with invasion of the hypothalamus.

Cats

Colitis causes chronic intractable diarrhea (similar to in dogs).
Systemic amebiasis has not been reported in the cat.
Acanthamoeba has not been reported in the cat.

DIFFERENTIAL DIAGNOSIS

Dogs

Causes of bloody diarrhea or tenesmus include the following: constipation; food intolerance/allergy; parasitism (whipworms, leishmaniasis, balantidiasis); HGE; foreign body; irritable bowel syndrome; inflammatory bowel disease; diverticula; infectious (parvovirus, clostridial enteritis, bacterial overgrowth and other bacterial causes, fungal such as histoplasmosis or blastomycosis); neoplasia; ulcerative colitis; endocrinopathy (Addison's disease); toxic (lead, fungal, or plant); and occasionally major organ disease causing colonic ulceration such as renal failure.
Other causes of diffuse neurologic disease in young animals include the following: infectious (distemper, fungal such as Cryptococcus, Blastomyces, Histoplasma, bacterial, protozoal such as Toxoplasma and Neospora); toxic (lead, organophosphate); trauma; GME; extracranial (hypoglycemia, hepatic encephalopathy); inherited epilepsy; and neoplasia.

Cats

Other causes of diarrhea include the following: food intolerance/allergy; inflammatory bowel disease; parasitism (giardiasis, parasites such as hookworms, roundworms, tritrichomonas); infectious (panleukopenia, FIV, FeLV producing panleukopenia-like syndrome, bacterial including Salmonella, rarely Campylobacter); drug (acetaminophen); neoplasia; pancreatitis; and major organ dysfunction.

DIAGNOSTICS

Diagnostic Feature

Microscopic examination—Colonic biopsy (H&E) obtained via endoscopy is the most reliable method.
Trophozoites in feces are very difficult to detect, although methylene blue staining improves chances (Fig. 1.1).
Trichrome and iron-hematoxyline are the ideal fecal stains but must be performed in a reference laboratory.
Fecal concentration techniques are of little help.
Brain biopsy may be required to definitively diagnose neurologic forms antemortem.
A dog reported with granulomatous amebic meningoencephal...

Cover
Title Page
Copyright
Dedication
Contributors
Preface
Acknowledgments
Chapter 1: Amebiasis
Chapter 2: Anaerobic Infections
Chapter 3: Angiostrongylus Infection
Chapter 4: Aspergillosis—Nasal
Chapter 5: Aspergillosis—Systemic
Chapter 6: Astrovirus Infection
Chapter 7: Babesiosis
Chapter 8: Balantidiasis
Chapter 9: Bartonellosis
Chapter 10: Blastomycosis
Chapter 11: Bordetellosis: Cats
Chapter 12: Botulism
Chapter 13: Brucellosis
Chapter 14: Campylobacteriosis
Chapter 15: Candidiasis
Chapter 16: Canine Coronavirus Infection
Chapter 17: Canine Distemper
Chapter 18: Canine Herpesvirus Infection
Chapter 19: Canine Influenzavirus Infection
Chapter 20: Canine Lungworm (Crenosoma)
Chapter 21: Canine Lungworm (Filaroides)
Chapter 22: Canine Parvovirus Infection
Chapter 23: Canine Tracheal Worm (Oslerus)
Chapter 24: Chagas Disease (American Trypanosomiasis)
Chapter 25: Cheyletiellosis
Chapter 26: Chlamydiosis: Cats
Chapter 27: Clostridial Enterotoxicosis
Chapter 28: Coccidioidomycosis
Chapter 29: Coccidiosis
Chapter 30: Colibacillosis
Chapter 31: Cryptococcosis
Chapter 32: Cryptosporidiosis
Chapter 33: Cuterebriasis
Chapter 34: Cytauxzoonosis
Chapter 35: Demodicosis
Chapter 36: Dermatophilosis
Chapter 37: Dermatophytosis: Keratinophilic Mycosis
Chapter 38: Ear Mites
Chapter 39: Ehrlichiosis
Chapter 40: Feline Calicivirus Infection
Chapter 41: Feline Foamy (Syncytium-Forming) Virus Infection
Chapter 42: Feline Herpesvirus Infection
Chapter 43: Feline Immunodeficiency Virus
Chapter 44: Feline Infectious Peritonitis
Chapter 45: Feline Leukemia Virus Infection
Chapter 46: Feline Lungworm (Aelurostrongylus)
Chapter 47: Feline Panleukopenia
Chapter 48: Fleas and Flea Control
Chapter 49: Giardiasis
Chapter 50: Heartworm Disease—Cats
Chapter 51: Heartworm Disease: Dogs
Chapter 52: Helicobacter Infection
Chapter 53: Hemotropic Mycoplasmosis
Chapter 54: Hepatozoonosis
Chapter 55: Histoplasmosis
Chapter 56: Hookworms
Chapter 57: Infectious Canine Hepatitis Virus Infection
Chapter 58: Infectious Canine Tracheobronchitis (Kennel Cough)
Chapter 59: Kidney Worm (Dioctophyma)
Chapter 60: L-Form Bacterial Infections
Chapter 61: Leishmaniasis
Chapter 62: Leptospirosis
Chapter 63: Liver Fluke Infection
Chapter 64: Lung Fluke Infection (Paragonimus)
Chapter 65: Lyme Borreliosis
Chapter 66: Mycobacterial Infections
Chapter 67: Microsporidiosis
Chapter 68: Mycoplasmosis
Chapter 69: Nasal Capillariasis (Eucoleus)
Chapter 70: Nasal Mites (Pneumonyssoides)
Chapter 71: Neosporosis
Chapter 72: Nocardiosis
Chapter 73: Ollulanus Infection
Chapter 74: Physaloptera Infection
Chapter 75: Plague
Chapter 76: Pneumocystosis
Chapter 77: Pox Virus Infection
Chapter 78: Protothecosis
Chapter 79: Pseudorabies Virus Infection
Chapter 80: Pythiosis
Chapter 81: Q Fever
Chapter 82: Rabies
Chapter 83: Reovirus Infection
Chapter 84: Respiratory Capillariasis (Eucoleus)
Chapter 85: Rhinosporidium Infection
Chapter 86: Rocky Mountain Spotted Fever
Chapter 87: Rotavirus Infection
Chapter 88: Roundworms (Ascariasis)
Chapter 89: Salmonellosis
Chapter 90: Salmon Poisoning
Chapter 91: Sarcocystis
Chapter 92: Sarcoptic Mange
Chapter 93: Spirocerca lupi
Chapter 94: Sporotrichosis
Chapter 95: Staphylococcal/Bacterial Pyoderma and Resistant Infections
Chapter 96: Streptococcal Infections
Chapter 97: Strongyloides
Chapter 98: Tapeworms (Cestodiasis)
Chapter 99: Tetanus
Chapter 100: Tick Bite Paralysis
Chapter 101: Ticks and Tick Control
Chapter 102: Toxoplasmosis
Chapter 103: Trichinosis
Chapter 104: Trichomoniasis
Chapter 105: Trichosporonosis
Chapter 106: Tularemia
Chapter 107: Tyzzer's Disease
Chapter 108: Urinary Capillariasis (Pearsonema)
Chapter 109: Whipworms (Trichuriasis)
Appendices
Index
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