Full Text Journal Articles by
Author Katja Koeppel

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SARS-CoV-2 Reverse Zoonoses to Pumas and Lions, South Africa.

Katja Natalie Koeppel, Adriano Mendes, Amy Strydom, Lia Rotherham, Misheck Mulumba, Marietjie Venter,

Reverse-zoonotic infections of severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) from humans to wildlife species internationally raise concern over the emergence of new variants in animals. A better understanding of the transmission dynamics and pathogenesis in susceptible species will mitigate the risk to humans and wildlife occurring in Africa. Here ... Read more >>

Viruses (Viruses)
[2022, 14(1):]

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Successful Treatment of Cutaneous Squamous Cell Carcinoma in a Captive Green Iguana (Iguana Iguana).

Louise van der Weyden, Nicolize O'Dell, Alida Avenant, Paolo Pazzi, Katja N Koeppel,

Reptiles are popular exotic pets and green iguanas (Iguana iguana) are amongst the top ten most popular reptiles. Here we describe a captive 8-year-old female green iguana that was referred for treatment of a non-healing, discharging lesion on the side of the body. The lesion was surgically excised and histopathological ... Read more >>

Top Companion Anim Med (Topics in companion animal medicine)
[2021, 46:100610]

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Polyclonal antibody-based immunohistochemical detection of intraleukocytic Theileria parasites in roan and sable antelopes.

Sarah J Clift, Bernat Martí-Garcia, Rephima M Phaswane, Emily P Mitchell, Antoinette I Josemans, Ilse Vorster, Katja N Koeppel, Jeanni Fehrsen,

<i>Theileria</i> parasites commonly infect African wild artiodactyls. In rare roan (<i>Hippotragus equinus</i>) and sable (<i>H. niger</i>) antelopes, <i>Theileria</i> sp. (sable)-associated calf mortalities constrain breeding programs. The pathogenicity of most leukocyte-transforming <i>Theileria</i> spp. originates in their invasion of and multiplication in various mononuclear leukocytes, the transformation of both infected and uninfected ... Read more >>

J Vet Diagn Invest (Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc)
[2021, 33(6):1079-1088]

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Clinical Course of Infection and Cross-Species Detection of Equine Parvovirus-Hepatitis.

Birthe Reinecke, Mara Klöhn, Yannick Brüggemann, Volker Kinast, Daniel Todt, Alexander Stang, Marcha Badenhorst, Katja Koeppel, Alan Guthrie, Ursula Groner, Christina Puff, Madeleine de le Roi, Wolfgang Baumgärtner, Jessika-M V Cavalleri, Eike Steinmann,

Since its first discovery by Arnold Theiler in 1918, serum hepatitis also known as Theiler's disease has been reported worldwide, causing idiopathic acute hepatitis and liver failure in horses. Recent studies have suggested a novel parvovirus, named equine parvovirus hepatitis (EqPV-H), to be associated with Theiler's disease. Despite the severity ... Read more >>

Viruses (Viruses)
[2021, 13(8):]

Cited: 3 times

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Successful treatment of early cutaneous squamous cell carcinoma with hypofractionated radiation therapy in an African lion (Panthera leo).

Louise Van der Weyden, Nicolize O'Dell, Alida Avenant, Paolo Pazzi, Katja N Koeppel,

Cutaneous squamous cell carcinoma (SCC) is a slow growing but locally invasive neoplasm, most commonly caused by prolonged exposure to ultraviolet (UV) radiation. Whilst SCC accounts for 15% of skin tumours in domesticated cats, cutaneous SCC in non-domesticated felids (apart from captive snow leopards) appears to be uncommon, with only ... Read more >>

J S Afr Vet Assoc (Journal of the South African Veterinary Association)
[2021, 92(0):e1-e6]

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Patterns of rabies cases in South Africa between 1993 and 2019, including the role of wildlife.

Katja Natalie Koeppel, Ockert Louis van Schalkwyk, Peter N Thompson,

Rabies is a global viral zoonosis endemic to South Africa, resulting in fatal encephalitis in warm-blooded animals, including humans. The loss of human lives and economic losses in rural areas through loss of livestock are substantial. A review was conducted of all confirmed animal rabies cases in South Africa from ... Read more >>

Transbound Emerg Dis (Transboundary and emerging diseases)
[2021, :]

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Patterns of rabies cases in South Africa between 1993-2019, including the role of wildlife

Katja Koeppel, Ockert van Schalkwyk, Peter Thompson,

Rabies is a global viral zoonosis endemic to South Africa, resulting in fatal encephalitis in warm blooded animals, including humans. The loss of human lives and economic losses in rural areas through loss of livestock are substantial. A review was conducted of all confirmed rabies cases in South Africa from ... Read more >>

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Immunogenicity of Newcastle Disease Vaccine in Southern Ground-hornbill (Bucorvus leadbeateri).

Katja N Koeppel, Lucy V Kemp, Louis H Maartens, Peter N Thompson,

The southern ground-hornbill (<i>Bucorvus leadbeateri</i>; hereafter SGH) is endangered in South Africa, Namibia, and Swaziland. Through a conservation program established in South Africa by the Mabula Ground Hornbill Project, wild populations are being re-established by the reintroduction of captive-reared birds. The SGH is susceptible to infection with avian avulavirus 1, ... Read more >>

J Avian Med Surg (Journal of avian medicine and surgery)
[2020, 34(3):229-236]

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EVALUATION OF A PARTIALLY REVERSIBLE IMMOBILIZATION PROTOCOL USING MEDETOMIDINE, BUTORPHANOL, ZOLAZEPAM-TILETAMINE, AND KETAMINE IN FREE-RANGING WARTHOGS (PHACOCHOERUS AFRICANUS) IN KRUGER NATIONAL PARK, SOUTH AFRICA.

Jennie Hewlett, Peter Buss, Francisco Olea-Popelka, Katja Koeppel, Donald Neiffer, Guy Hausler, Leana Rossouw, Tebogo Manamela, Eliza Stout, Michele Miller,

Twenty-one free-ranging warthogs (<i>Phacochoerus africanus</i>) in the Kruger National Park, South Africa, were immobilized with a combination of medetomidine (0.07 ± 0.01 mg/kg), butorphanol (0.26 ± 0.04 mg/kg), tiletamine-zolazepam (0.69 ± 0.15 mg/kg), and ketamine (1.43 ± 0.21 mg/kg) administered intramuscularly by dart. Induction, immobilization, and recovery characteristics were evaluated ... Read more >>

J Zoo Wildl Med (Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians)
[2020, 51(1):80-87]

Cited: 1 time

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Compared to etorphine-azaperone, the ketamine-butorphanol-medetomidine combination is also effective at immobilizing zebra (Equus zebra).

Gideon P Stemmet, Leith Cr Meyer, Angela Bruns, Peter Buss, David Zimmerman, Katja Koeppel, Gareth E Zeiler,

<h4>Objective</h4>To compare immobilization efficacy of a nonpotent opioid drug combination, ketamine-butorphanol-medetomidine (KBM) to the preferred etorphine-azaperone (EA) combination in zebras.<h4>Study design</h4>Randomized crossover trial.<h4>Animals</h4>A group of ten adult zebra (six females and four male).<h4>Methods</h4>KBM and EA were administered once to the zebras in random order by dart, 3 weeks apart. Once ... Read more >>

Vet Anaesth Analg (Veterinary anaesthesia and analgesia)
[2019, 46(4):466-475]

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RADIOGRAPHIC ABDOMINAL ANATOMY IN CAPTIVE RED PANDAS ( AILURUS FULGENS).

Modesta Makungu, Wencke M du Plessis, Michelle Barrows, Hermanus B Groenewald, Katja N Koeppel,

The red panda ( Ailurus fulgens) is classified as an endangered species by the International Union for Conservation of Nature and Natural Resources. The aim of this study was to describe the normal radiographic abdominal anatomy in red pandas to provide guidance for clinical use. Radiography of the abdomen was ... Read more >>

J Zoo Wildl Med (Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians)
[2018, 49(1):214-218]

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RADIOGRAPHIC THORACIC ANATOMY OF THE RED PANDA (AILURUS FULGENS).

Modesta Makungu, Wencke M du Plessis, Michelle Barrows, Hermanus B Groenewald, Katja N Koeppel,

The red panda ( Ailurus fulgens ) is classified as an endangered species by the International Union for Conservation of Nature and Natural Resources. The natural distribution of the red panda is in the Himalayas and southern China. Thoracic diseases such as dirofilariasis, hypertrophic cardiomyopathy, tracheal obstruction, lung worm infestation, ... Read more >>

J Zoo Wildl Med (Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians)
[2016, 47(3):781-789]

Cited: 1 time

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RADIOGRAPHIC AND ULTRASONOGRAPHIC ABDOMINAL ANATOMY IN CAPTIVE RING-TAILED LEMURS (LEMUR CATTA).

Modesta Makungu, Wencke M du Plessis, Michelle Barrows, Hermanus B Groenewald, Katja N Koeppel,

The ring-tailed lemur (Lemur catta) is primarily distributed in south and southwestern Madagascar. It is classified as an endangered species by the International Union for Conservation of Nature. Various abdominal diseases, such as hepatic lipidosis, intestinal ulcers, cystitis, urinary tract obstruction, and neoplasia (e.g., colonic adenocarcinoma and cholangiocarcinoma), have been ... Read more >>

J Zoo Wildl Med (Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians)
[2016, 47(2):573-585]

Cited: 1 time

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Thoracic limb morphology of the red panda (Ailurus fulgens) evidenced by osteology and radiography.

Modesta Makungu, Hermanus B Groenewald, Wencke M du Plessis, Michelle Barrows, Katja N Koeppel,

The red panda (Ailurus fulgens) is distributed primarily in the Himalayas and southern China. It is classified as a vulnerable species by the International Union for Conservation of Nature. The aim of this study was to describe the normal osteology and radiographic anatomy of the thoracic limb of the red ... Read more >>

Onderstepoort J Vet Res (The Onderstepoort journal of veterinary research)
[2015, 82(1):e1-e10]

Cited: 1 time

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Radiographic thoracic anatomy of the ring-tailed lemur (Lemur catta).

Modesta Makungu, Wencke M du Plessis, Michelle Barrows, Hermanus B Groenewald, Katja N Koeppel,

<h4>Background</h4>The ring-tailed lemur (Lemur catta) is a quadruped arboreal primate primarily distributed in south and south-western Madagascar. This study was carried out to describe the normal radiographic thoracic anatomy of the ring-tailed lemur as a reference for clinical use.<h4>Methods</h4>Radiography of the thorax was performed in 15 captive ring-tailed lemurs during ... Read more >>

J Med Primatol (Journal of medical primatology)
[2014, 43(3):144-152]

Cited: 4 times

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Polycystic kidneys in the red panda (Ailurus fulgens).

Modesta Makungu, Wencke M du Plessis, Michelle Barrows, Katja N Koeppel, Hermanus B Groenewald,

An intact adult male 14.3-yr-old red panda (Ailurus fulgens) presented for health examination with a history of slowly progressing loss of body condition. Abdominal radiographs revealed a truncated abdomen with poor serosal abdominal detail and multiple areas of spondylosis with some collapsed intervertebral disc spaces. On computed tomography, multiple ovoid ... Read more >>

J Zoo Wildl Med (Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians)
[2013, 44(3):777-780]

Cited: 2 times

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The use of the gonadotropin-releasing hormone analog deslorelin for short-term contraception in red pandas (Ailurus fulgens).

Katja N Koeppel, Michelle Barrows, Katherine Visser,

Red pandas (Ailurus fulgens) are threatened with extinction owing to habitat loss, exacerbated by their unique ecology and low fecundity. Regional breeding programs manage captive red panda populations. Recommendations not to breed may be made for various reasons, including genetic overrepresentation of certain individuals. No recommendations have been published on ... Read more >>

Theriogenology (Theriogenology)
[2014, 81(2):220-224]

Cited: 2 times

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Ultrasonographic abdominal anatomy of healthy captive caracals (Caracal caracal).

Modesta Makungu, Wencke M du Plessis, Michelle Barrows, Katja N Koeppel, Hermanus B Groenewald,

Abdominal ultrasonography was performed in six adult captive caracals (Caracal caracal) to describe the normal abdominal ultrasonographic anatomy. Consistently, the splenic parenchyma was hyperechoic to the liver and kidneys. The relative echogenicity of the right kidney's cortex was inconsistent to the liver. The gall bladder was prominent in five animals ... Read more >>

J Zoo Wildl Med (Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians)
[2012, 43(3):522-529]

Cited: 1 time

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