click below
click below
Normal Size Small Size show me how
Sm Animal Quiz 1
Lecture 2: Zoonotic Diseases
| Question | Answer |
|---|---|
| zoonotic disease | disease or disease causing agent that is transmissible between humans and animals |
| characteristics of zoonotic diseases | animals can be asymptomatic, animal host is the reservoir, transmission can be via direct contact, environmental sources, fomites, and vector-borne |
| Rabies CAUSED BY | virus Rabies lyssavirus; 100% fatal |
| Rabies TRANSMISSION | direct contact with infected tissues, saliva, bite, open wound, and mucous membranes |
| Rabies SYMPTOMS | flu-like, progresses to neurologic signs (confusion, anxiety, agitation, stumbling) |
| Rabies INCUBATION PERIOD | 3 wks - 12 wks, up to 6 mos |
| Rabies DIAGNOSIS | direct fluorescent antibody test, brain tissue; requires EUTHANASIA |
| Rabies PREVENTION | vaccination of domestic animals, reduce exposure, baiting programs |
| rabies as a worldwide concern | responsible for 60000 deaths per year, US spends $300 million on rabies prevention, 40000 humans require post-exposure treatment; HAWAII is only US state rabies free |
| leptospirosis CAUSED BY | bacteria Leptospirosis spp (up to 10 strains can cause disease), can be FATAL |
| leptospirosis TRANSMISSION | direct contact with infected material, urine, bites, tissues, and water contaminated with infected urine, RODENTS |
| leptospirosis SYMPTOMS | flu-like, progresses to liver/kidney failure, spontaneous bleeding, brain inflammation |
| leptospirosis INCUBATION PERIOD | 7-14 days, up to 1 month |
| leptospirosis DIAGNOSIS | antibody test; treat right away |
| leptospirosis PREVENTION | vaccination for dogs, reduce exposure (PPE, handwashing) |
| leptospirosis TREATMENT | tetracycline antibiotics (oral/injectable), supportive |
| roundworms CAUSED BY | internal parasite (Baylisascaris, Toxocara) |
| roundworms TRANSMISSION | transmammary, transplacental, ingestion of ova, fecal-oral |
| roundworms SYMPTOMS | pets usually asymptomatic (spaghetti stool, diarrhea), humans can have ocular larva migrans |
| roundworm DIAGNOSIS | fecal float |
| roundworm PREVENTION | regular testing, deworming pets, handwashing |
| campylobacter CAUSED BY | bacteria Campylobacter spp, found in GI tract |
| campylobacter TRANSMISSION | ingestion of contaminated food, water, raw milk, fecal-oral (puppies w diarrhea) |
| campylobacter SYMPTOMS | diarrhea and vomiting, can require hospitalization |
| campylobacter DIAGNOSIS | fecal culture |
| campylobacter PREVENTION | good hygiene (HANDWASHING), avoid raw milk |
| campylobacter TREATMENT | oral/injectable antibiotics, supportive treatment |
| toxoplasmosis CAUSED BY | protozoan Toxoplasmosis gondii, eggs passed on feces of cats, undercooked meat that contains organism |
| toxoplasmosis TRANSMISSION | cats (definitive hosts, sheds a few weeks out of a lifetime), fecal-oral spread to humans (litterbox) |
| toxoplasmosis SYMPTOMS | minor flu-like symptoms in HEALTHY adults; in PREGNANT women, can cause eye issues/mental deficiency in fetus if infected in 1st half of pregnancy |
| toxoplasmosis DIAGNOSIS | serologic testing |
| toxoplasmosis PREVENTION | good hygiene (HANDWASHING); if pregnant do not clean litterbox |
| toxoplasmosis TREATMENT | oral antibiotics, supportive treatment |
| bartonella CAUSED BY | bacteria Bartonella henselae ('Cat Scratch Fever', 30% of cats are carriers) |
| bartonella TRANSMISSION | scratch, bite, lick, or fleas from infected cats (sheds a few weeks out of a lifetime) |
| bartonella SYMPTOMS | cats are asymptomatic carries; fever, swollen lymp nodes in humans, can resemble lymphoma |
| bartonella DIAGNOSIS | serologic testing, direct observation of organism in blood |
| bartonella PREVENTION | avoid rough play. treat cats for fleas, keep cats indoors |
| bartonella TREATMENT | oral antibiotics, supportive treatment |
| plague CAUSED BY | bacteria Yersinia pestis; BUBONIC: affects lymph nodes, PNEUMONIC affects lungs, more deadly |
| plague EDEMIC | Southwestern US |
| plague TRANSMISSION | found in rodents, high morbidity and mortality in cats |
| plague SYMPTOMS | fever, enlarged lymph nodes, pneumonia in animals; fever, swollen lymph nodes in humans |
| plague DIAGNOSIS | microscopic exam of blood, presence of bacteria in lymph node aspirate |
| plague PREVENTION | reduce rodent population in area, treat cats for fleas, keep cats indoors, wear PPE when handling dead animals that may carry |
| plague TREATMENT | oral antibiotics, supportive treatment |
| tularemia CAUSED BY | bacteria Francisella tularenis; many suitable animal hosts bust rodents/lagomorphs most susceptible |
| tularemia TRANSMISSION | bite from infected tick, cuts while skinning infected animals, ingestion/inhalation |
| tularemia SYMPTOMS | fatal septicemia in rabbits and rodents |
| tularemia ulceroglandular | ulcer at tick bite site, lymph node enlargement, fever exhaustion |
| tularemia glandular | same as above but no ulceration |
| tularemia oculoglandular | eye pain, redness, discharge, sensitivity to light |
| tularemia pulmonary | chest pain, difficulty breathing, cough |
| tularemia DIAGNOSIS | blood culture, clinical signs, exposure history |
| tularemia PREVENTION | prevent tick bites (long pants, long sleeves), wear gloves/mask when handling dead animals that may carry disease |
| tularemia TREATMENT | oral antibiotics, supportive treatment |
| brucellosis CAUSED BY | bacteria Brucella spp; B. abortus (cattle), B. canis (dog), B. mellitensis (sheep), B. suis (swine) |
| brucellosis TRANSMISSION | infected tissues and secretions (semen, milk, placenta, infected neonates) |
| brucellosis SYMPTOMS | spontaneous abortions (animals), muscle pain, fever, exhaustion; can persist for long periods, never resolve, or reoccur; recurrent fever, arthritis, swollen testicles/testicles, depression |
| brucellosis DIAGNOSIS | bacterial isolation, antibody detection; nearly eradicated in US due to test/slaughter |
| brucellosis PREVENTION | avooid ingestion of raw milk/undercooked meats/unpastuerized dairy, wear PPE when handling dead animals that may carry disease |
| brucellosis TREATMENT | oral antibiotics, supportive treatment |
| ringworm CAUSED BY | fungus Microsporum canis (cats esp susceptible) |
| ringworm TRANSMISSION | contact w/ infected animal, human, or fomite |
| ringworm SYMPTOMS | itchy, ring-shaped rash, hair loss in mammals |
| ringworm DIAGNOSIS | Wood's light test, fungal culture |
| ringworm PREVENTION | avoid contact with infected animals and surfaces, handwashing |
| ringworm TREATMENT | oral or topical antifungals |