Presentation is loading. Please wait.

Presentation is loading. Please wait.

WILDLIFE DISEASES: What you don’t know COULD kill you! Andy Radomski, Ph.D. University of Minnesota-Crookston Natural Resources - Wildlife.

Similar presentations


Presentation on theme: "WILDLIFE DISEASES: What you don’t know COULD kill you! Andy Radomski, Ph.D. University of Minnesota-Crookston Natural Resources - Wildlife."— Presentation transcript:

1 WILDLIFE DISEASES: What you don’t know COULD kill you! Andy Radomski, Ph.D. University of Minnesota-Crookston Natural Resources - Wildlife

2 My Neat Experiences: Undergraduate Graduate Wisconsin DNR – Lake Michigan Lyme Disease USFWS National Wildlife Health Lab Graduate Postdoctorate

3 My Neat Experiences: Undergraduate Graduate Wisconsin DNR – Lake Michigan Lyme Disease USFWS National Wildlife Health Lab Graduate Postdoctorate

4 My Neat Experiences: Undergraduate Graduate Wisconsin DNR – Lake Michigan Lyme Disease USFWS National Wildlife Health Lab Graduate Postdoctorate

5 My Neat Experiences:

6 Undergraduate Graduate Wisconsin DNR – Lake Michigan Lyme Disease USFWS National Wildlife Health Lab Graduate Postdoctorate

7 My Neat Experiences: Undergraduate Graduate Wisconsin DNR – Lake Michigan Lyme Disease USFWS National Wildlife Health Lab Graduate Postdoctorate

8 STRESSORS OF TEXAS BOBWHITES: ARE THEY TO BLAME FOR THEIR DECLINE?

9 Rio Grande Plains r=-0.142 P=0.561

10 BOOM-BUST HYPOTHESES ¨ El Nino / Habitat Degradation ¨ Parasitic Infection / R.E.V. ¨ Fire Ants ¨ Nutritional Deficiencies ¨ Endocrine Disruptors Corticosterone

11 Radio-Immuno Assay (RIA)

12 My Neat Experiences: Undergraduate Wisconsin DNR – Lake Michigan Lyme Disease USFWS National Wildlife Health Lab Graduate Postdoctorate

13 Environment Human Disease

14

15

16 ZOONOTIC DISEASES: Wildlife diseases transmissible to humans: RABIESGIARDIASIS PLAQUERMSP LYME DISEASETULAREMIA HISTOPLASMOSISHANTAVIRUS RACCOON RNDWORMSARCOCYSTIC

17 RABIES “Hydrophobia” or “Rage” Virus (F. Rhabdoviridae) Only warm-blooded animals Symptoms in 10 days to several months Normally from bite or saliva Can be aerosal - bat caves in TX May be abnormal in appearance or behavior Prophylaxis (pre-exposure vaccines and Control (killed vaccines)

18

19 GIARDIASIS Giardiasis, “Beaver Fever” Protozoan (Giardia lamblia) Intestinal disorder Ingest cyst in water, feces or contact with an infected animal (beaver and muskrat) Chronic diarrhea, weight loss and malaise Effective medications; preventative – avoid drinking untreated water

20

21 PLAGUE “Black Death”, “Pest” Bacterium (Yersinia pestis); Fleas transmit Isolated cases in West and Texas Wild rodent, rabbits, carnivores Fever, swollen lymph nodes, progressing to high fever, confusion and fatique Untreated – high fatality rate Treatment – tetracycline or other drugs

22 Loss 1/3 world population (1800s)

23 ROCKY MOUNTAIN SPOTTED FEVER Bacterium (Rickettsia rickettsii) Ticks transmit (several spp.) Bite or crushed ticks or tick feces Flu-like symptoms; fever, chills, aches Rubber gloves, wash hands, remove ticks Usually 4 hours for tick transmittal

24

25 LYME DISEASE Bacterium (Borrelia burgdorferi) Ticks and fleas Old Lyme, Connecticut 3 stages: (1) Flu-like, (2) Small red lesion around bite, (3) Recurrent arthritis Treatment: Antibiotics

26

27 TULAREMIA “Rabbit fever or disease”, “Francis’ disease” Bacterium (Francisella tularensis) Many hosts; humans usually infected by rabbits during skinning process, ingestion, or from tick/flea/deerfly bites Symptoms: fever, infected sores, “flu-like” Rabbits with white spots on liver/spleen Rarely fatal; treatable

28 HISTOPLASMOSIS Fungus (Histoplasma capsulatum) Respiratory ailment – inhale spores Blackbird and pigeon roosts, bat caves, and chicken houses Symptoms highly variable; severe cases resemble tuberculosis

29 Focal necrosis in liver Abscessed mesenteric lymph node

30 HANTAVIRUS Group of viruses Infected rodents; urine, feces, and/or saliva – aerosal and direct Kidney, blood, respiratory ailments Can be fatal

31 RACCOON ROUNDWORM: Intestinal roundworm, Baylisascaris procyonis Infectious: cottontail rabbits, mammals, birds Signs: neurological disease; circling, abnormal posture, blindness Lesions: CNS, larvae as white nodules in abdominal or thoracic viscera

32

33 SARCOCYSTOSIS “Rice breast”, “Long grain rice disease” Protozoan (Sarcocystis spp.) Most vertebrates; intermediate host

34

35

36 CUTANEOUS WARBLES Larval flies (Cuterebra spp.) Signs: increased scratching/grooming Lesions: localized swellings (0.5-1”) Squirrels and rodents; common in SE Occasionally debilitating Restricted to skin

37

38 DISEASE DIAGNOSIS Hunters typically report abnormalities Some gross lesions are specific and indicative of a specific disease USFWS Wildlife Health Lab State Agency University – Medical, Veterinary

39 Avian Pox

40

41

42 2 Good Field Books Field Guide to Wildlife Diseases, General Field Procedures and Diseases of Migratory Birds (USDI – Madison, WI) Field Manual of Wildlife Diseases in the Southeastern United States (Davidson, W.R. and V.F. Nettles – SCWDS)

43


Download ppt "WILDLIFE DISEASES: What you don’t know COULD kill you! Andy Radomski, Ph.D. University of Minnesota-Crookston Natural Resources - Wildlife."

Similar presentations


Ads by Google