WILDLIFE DISEASES: What you don’t know  COULD  kill you! Andy Radomski, Ph.D. University of Minnesota-Crookston Natural Re...
My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li...
My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li...
My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li...
My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li...
My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li...
My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li...
STRESSORS OF TEXAS BOBWHITES:  ARE THEY TO  BLAME FOR THEIR DECLINE?
Rio Grande Plains r=-0.142 P=0.561
BOOM-BUST HYPOTHESES <ul><li>El Nino / Habitat Degradation </li></ul><ul><li>Parasitic Infection / R.E.V. </li></ul><ul><l...
Radio-Immuno Assay (RIA)
My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li></ul><ul><li>Lyme Disease ...
Environment Human Disease
 
 
ZOONOTIC DISEASES: <ul><li>Wildlife diseases transmissible to humans: </li></ul><ul><li>RABIES GIARDIASIS </li></ul><ul><l...
RABIES <ul><li>“ Hydrophobia” or “Rage” </li></ul><ul><li>Virus ( F. Rhabdoviridae ) </li></ul><ul><li>Only warm-blooded a...
 
GIARDIASIS <ul><li>Giardiasis, “Beaver Fever” </li></ul><ul><li>Protozoan ( Giardia lamblia ) </li></ul><ul><li>Intestinal...
 
PLAGUE <ul><li>“ Black Death”, “Pest” </li></ul><ul><li>Bacterium ( Yersinia pestis ); Fleas transmit </li></ul><ul><li>Is...
<ul><li>Loss 1/3 world population (1800s) </li></ul>
ROCKY MOUNTAIN SPOTTED FEVER <ul><li>Bacterium ( Rickettsia rickettsii ) </li></ul><ul><li>Ticks transmit (several spp.) <...
 
LYME DISEASE <ul><li>Bacterium ( Borrelia burgdorferi ) </li></ul><ul><li>Ticks and fleas </li></ul><ul><li>Old Lyme, Conn...
                                                   
TULAREMIA <ul><li>“ Rabbit fever or disease”, “Francis’ disease” </li></ul><ul><li>Bacterium ( Francisella tularensis ) </...
HISTOPLASMOSIS <ul><li>Fungus ( Histoplasma capsulatum ) </li></ul><ul><li>Respiratory ailment – inhale spores </li></ul><...
Focal necrosis in liver Abscessed mesenteric lymph node
HANTAVIRUS <ul><li>Group of  viruses </li></ul><ul><li>Infected rodents; urine, feces, and/or saliva – aerosal and direct ...
RACCOON ROUNDWORM: <ul><li>Intestinal roundworm,  Baylisascaris procyonis   </li></ul><ul><li>Infectious: cottontail rabbi...
 
SARCOCYSTOSIS <ul><li>“ Rice breast”, “Long grain rice disease” </li></ul><ul><li>Protozoan (Sarcocystis spp.) </li></ul><...
 
 
CUTANEOUS WARBLES <ul><li>Larval flies (Cuterebra spp.) </li></ul><ul><li>Signs: increased scratching/grooming </li></ul><...
 
DISEASE DIAGNOSIS <ul><li>Hunters typically report abnormalities </li></ul><ul><li>Some gross lesions are specific and ind...
Avian Pox
 
 
2 Good Field Books <ul><li>Field Guide to Wildlife Diseases, General Field Procedures and Diseases of Migratory Birds ( US...
 
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WILDLIFE DISEASES: What you don't know COULD kill you!

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  • Distemper has similar symptoms; other viruses, some bacteria like Listeria, and even parasitic nematodes can infect the brain of animals and cause altered behavior
  • Ingest contaminated soil, water or carcasses
  • Single cell parasite; int. host are herbivores; req. predator-prey relationship
  • WILDLIFE DISEASES: What you don't know COULD kill you!

    1. 1. WILDLIFE DISEASES: What you don’t know COULD kill you! Andy Radomski, Ph.D. University of Minnesota-Crookston Natural Resources - Wildlife
    2. 2. My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li></ul><ul><li>Lyme Disease </li></ul><ul><li>USFWS National Wildlife Health Lab </li></ul><ul><li>Graduate </li></ul><ul><li>Postdoctorate </li></ul>
    3. 3. My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li></ul><ul><li>Lyme Disease </li></ul><ul><li>USFWS National Wildlife Health Lab </li></ul><ul><li>Graduate </li></ul><ul><li>Postdoctorate </li></ul>
    4. 4. My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li></ul><ul><li>Lyme Disease </li></ul><ul><li>USFWS National Wildlife Health Lab </li></ul><ul><li>Graduate </li></ul><ul><li>Postdoctorate </li></ul>
    5. 5. My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li></ul><ul><li>Lyme Disease </li></ul><ul><li>USFWS National Wildlife Health Lab </li></ul><ul><li>Graduate </li></ul><ul><li>Postdoctorate </li></ul>
    6. 6. My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li></ul><ul><li>Lyme Disease </li></ul><ul><li>USFWS National Wildlife Health Lab </li></ul><ul><li>Graduate </li></ul><ul><li>Postdoctorate </li></ul>
    7. 7. My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Graduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li></ul><ul><li>Lyme Disease </li></ul><ul><li>USFWS National Wildlife Health Lab </li></ul><ul><li>Graduate </li></ul><ul><li>Postdoctorate </li></ul>
    8. 8. STRESSORS OF TEXAS BOBWHITES: ARE THEY TO BLAME FOR THEIR DECLINE?
    9. 9. Rio Grande Plains r=-0.142 P=0.561
    10. 10. BOOM-BUST HYPOTHESES <ul><li>El Nino / Habitat Degradation </li></ul><ul><li>Parasitic Infection / R.E.V. </li></ul><ul><li>Fire Ants </li></ul><ul><li>Nutritional Deficiencies </li></ul><ul><li>Endocrine Disruptors </li></ul><ul><ul><li>Corticosterone </li></ul></ul>
    11. 11. Radio-Immuno Assay (RIA)
    12. 12. My Neat Experiences: <ul><li>Undergraduate </li></ul><ul><li>Wisconsin DNR – Lake Michigan </li></ul><ul><li>Lyme Disease </li></ul><ul><li>USFWS National Wildlife Health Lab </li></ul><ul><li>Graduate </li></ul><ul><li>Postdoctorate </li></ul>
    13. 13. Environment Human Disease
    14. 16. ZOONOTIC DISEASES: <ul><li>Wildlife diseases transmissible to humans: </li></ul><ul><li>RABIES GIARDIASIS </li></ul><ul><li>PLAQUE RMSP </li></ul><ul><li>LYME DISEASE TULAREMIA </li></ul><ul><li>HISTOPLASMOSIS HANTAVIRUS </li></ul><ul><li>RACCOON RNDWORM SARCOCYSTIC </li></ul>
    15. 17. RABIES <ul><li>“ Hydrophobia” or “Rage” </li></ul><ul><li>Virus ( F. Rhabdoviridae ) </li></ul><ul><li>Only warm-blooded animals </li></ul><ul><li>Symptoms in 10 days to several months </li></ul><ul><li>Normally from bite or saliva </li></ul><ul><li>Can be aerosal - bat caves in TX </li></ul><ul><li>May be abnormal in appearance or behavior </li></ul><ul><li>Prophylaxis (pre-exposure vaccines and Control (killed vaccines) </li></ul>
    16. 19. GIARDIASIS <ul><li>Giardiasis, “Beaver Fever” </li></ul><ul><li>Protozoan ( Giardia lamblia ) </li></ul><ul><li>Intestinal disorder </li></ul><ul><li>Ingest cyst in water, feces or contact with an infected animal (beaver and muskrat) </li></ul><ul><li>Chronic diarrhea, weight loss and malaise </li></ul><ul><li>Effective medications; preventative – avoid drinking untreated water </li></ul>
    17. 21. PLAGUE <ul><li>“ Black Death”, “Pest” </li></ul><ul><li>Bacterium ( Yersinia pestis ); Fleas transmit </li></ul><ul><li>Isolated cases in West and Texas </li></ul><ul><li>Wild rodent, rabbits, carnivores </li></ul><ul><li>Fever, swollen lymph nodes, progressing to high fever, confusion and fatique </li></ul><ul><li>Untreated – high fatality rate </li></ul><ul><li>Treatment – tetracycline or other drugs </li></ul>
    18. 22. <ul><li>Loss 1/3 world population (1800s) </li></ul>
    19. 23. ROCKY MOUNTAIN SPOTTED FEVER <ul><li>Bacterium ( Rickettsia rickettsii ) </li></ul><ul><li>Ticks transmit (several spp.) </li></ul><ul><li>Bite or crushed ticks or tick feces </li></ul><ul><li>Flu-like symptoms; fever, chills, aches </li></ul><ul><li>Rubber gloves, wash hands, remove ticks </li></ul><ul><li>Usually 4 hours for tick transmittal </li></ul>
    20. 25. LYME DISEASE <ul><li>Bacterium ( Borrelia burgdorferi ) </li></ul><ul><li>Ticks and fleas </li></ul><ul><li>Old Lyme, Connecticut </li></ul><ul><li>3 stages: (1) Flu-like, (2) Small red lesion around bite, (3) Recurrent arthritis </li></ul><ul><li>Treatment: Antibiotics </li></ul>
    21. 26.                                                    
    22. 27. TULAREMIA <ul><li>“ Rabbit fever or disease”, “Francis’ disease” </li></ul><ul><li>Bacterium ( Francisella tularensis ) </li></ul><ul><li>Many hosts; humans usually infected by rabbits during skinning process, ingestion, or from tick/flea/deerfly bites </li></ul><ul><li>Symptoms: fever, infected sores, “flu-like” </li></ul><ul><li>Rabbits with white spots on liver/spleen </li></ul><ul><li>Rarely fatal; treatable </li></ul>
    23. 28. HISTOPLASMOSIS <ul><li>Fungus ( Histoplasma capsulatum ) </li></ul><ul><li>Respiratory ailment – inhale spores </li></ul><ul><li>Blackbird and pigeon roosts, bat caves, and chicken houses </li></ul><ul><li>Symptoms highly variable; severe cases resemble tuberculosis </li></ul>
    24. 29. Focal necrosis in liver Abscessed mesenteric lymph node
    25. 30. HANTAVIRUS <ul><li>Group of viruses </li></ul><ul><li>Infected rodents; urine, feces, and/or saliva – aerosal and direct </li></ul><ul><li>Kidney, blood, respiratory ailments </li></ul><ul><li>Can be fatal </li></ul>
    26. 31. RACCOON ROUNDWORM: <ul><li>Intestinal roundworm, Baylisascaris procyonis </li></ul><ul><li>Infectious: cottontail rabbits, mammals, birds </li></ul><ul><li>Signs: neurological disease; circling, abnormal posture, blindness </li></ul><ul><li>Lesions: CNS, larvae as white nodules in abdominal or thoracic viscera </li></ul>
    27. 33. SARCOCYSTOSIS <ul><li>“ Rice breast”, “Long grain rice disease” </li></ul><ul><li>Protozoan (Sarcocystis spp.) </li></ul><ul><li>Most vertebrates; intermediate host </li></ul>
    28. 36. CUTANEOUS WARBLES <ul><li>Larval flies (Cuterebra spp.) </li></ul><ul><li>Signs: increased scratching/grooming </li></ul><ul><li>Lesions: localized swellings (0.5-1”) </li></ul><ul><li>Squirrels and rodents; common in SE </li></ul><ul><li>Occasionally debilitating </li></ul><ul><li>Restricted to skin </li></ul>
    29. 38. DISEASE DIAGNOSIS <ul><li>Hunters typically report abnormalities </li></ul><ul><li>Some gross lesions are specific and indicative of a specific disease </li></ul><ul><li>USFWS Wildlife Health Lab </li></ul><ul><li>State Agency </li></ul><ul><li>University – Medical, Veterinary </li></ul>
    30. 39. Avian Pox
    31. 42. 2 Good Field Books <ul><li>Field Guide to Wildlife Diseases, General Field Procedures and Diseases of Migratory Birds ( USDI – Madison, WI ) </li></ul><ul><li>Field Manual of Wildlife Diseases in the Southeastern United States ( Davidson, W.R. and V.F. Nettles – SCWDS ) </li></ul>

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