Publications by authors named "Peter Wohlsein"

Eosinophilic meningoencephalitis is a rare neurological disorder, affecting mainly young, male and medium-sized to large breed dogs. This case report describes the clinical signs of a grave and peracute clinical course and pathomorphological findings of a young, female Belgian Tervueren shepherd dog with eosinophilic meningoencephalomyelitis. The dog was presented to emergency service with acute onset of progressive apathy, developing into stupor and lateral recumbency.

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Introduction: Harbor seals () and grey seals () are infected by trophically transmitted intestinal cestodes of the genus . species can cause zoonotic infections in humans when larval stages are ingested with undercooked fish products. Diphyllobothriid cestode prevalence, infection dynamics, and health impact in phocid seals around densely populated coastal areas are little understood, and their species delineation remains challenging.

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Since the first emergence of the Bluetongue virus (BTV) in 2006 in Northern Europe, there has been a reported association between BTV Serotype 8 (BTV-8) and brain malformations in calves. The first BTV-3 outbreak in Germany was registered in October 2023. Since then, numbers have increased steadily.

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Harbor porpoises () are definitive hosts for intestinal sp. cestodes, zoonotic parasites with a heterogeneous life cycle and fishes as second intermediate hosts. Prevalence and level of infection of Diphyllobothrium cestodes in 661 dead-found harbor porpoises from the German North and Baltic Seas within a 30-year period were investigated.

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Raccoon dogs (Nyctereutes procyonoides) originated from East Asia and are listed as invasive alien species of Union concern in the European Union. Apart from their potential negative impact on native fauna as predators and competitors, they are discussed as reservoirs and vectors for various infectious diseases. Between 2021 and 2022, comprehensive post-mortem examinations of 110 raccoon dogs were performed as part of a health and risk assessment study of selected invasive alien species in Schleswig-Holstein, Germany.

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Rustrela virus (RusV), a recently discovered pathogen for domestic and wildlife animals, was identified as the causative agent of meningoencephalomyelitis in domestic cats and various zoo animals including lions. To analyze a past outbreak of increased mortality in lions and to reveal its possible etiological relationship with an RusV infection, this retrospective study re-evaluates 20 cases of lions originating from a zoo in Western Germany using archived formalin-fixed paraffin-embedded (FFPE) tissues. Animals with different neurologic signs were submitted for necropsy between December 1970 and April 1971.

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The discovery of several novel hepatovirus species in marine and terrestrial mammals has expanded the recognised members of the genus Hepatovirus and has provided better understanding on the evolutionary origins of human hepatovirus A (HAV). Using high throughput sequencing we detected a seal hepatovirus (SealHAV_NL/PV/21), in liver tissue of a deceased harbor seal (Phoca vitulina) originating from the Dutch North Sea coast. RT-PCR screening of liver samples of 88 harbor seals and 12 grey seals (Halichoerus grypus) from the same region identified seal hepatovirus in nine juvenile harbor seals in which minor sequence variation was observed in the VP1 gene.

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Background: Neoplasms consisting of two or more germinal layers are classified as teratomas if benign or as teratocarcinomas if malignant. Teratomas are rare tumours occurring in a wide range of species including mammals, birds and reptiles and only a few cases have been reported in ducks with infrequent documentation of immunohistochemical characterisation. Teratocarcinomas occur rarely and, to the authors' knowledge, have not been described or immunohistochemically characterised in ducks, yet.

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Diseases of the musculature can be caused, for example, by alimentary or traumatic issues. In three bald eagles with painful lameness and/or a reduced range of the hip joint, a muscular disease was diagnosed via radiographic examination. The eagles were kept in a falconry and trained as demonstration birds, which were displayed on a gloved hand and flown in falconry education programs.

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Article Synopsis
  • An alpaca baby (called a cria) was very weak and had trouble breathing after it was born, especially when trying to drink milk.
  • The vets found that it had choanal atresia, a condition where a part of its nose is not formed properly, and sadly had to put the cria to sleep.
  • This report helps people learn more about choanal atresia so that they can recognize it early in other baby alpacas.
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Raccoon dogs () and raccoons () are invasive alien species originating from East Asia and North America, respectively. They are discussed as vectors and reservoirs for various infectious diseases, including vector-borne and zoonotic pathogens, and are therefore a potential threat to human and domestic animal health, as well as to biodiversity and conservation. In the years 2021 and 2022, 110 raccoon dogs () and 30 raccoons () were screened via qPCR for the presence of spp.

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The ectoparasitic seal louse, infects harbour () and grey seals () in the North and Baltic Sea. The endoparasitic heartworm parasitizes the right heart and blood vessels of harbour seals. The complete lifecycle of the heartworm is not entirely understood although the seal louse is assumed to serve as vector for its transmission.

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The zoonotic bacterium Coxiella (C.) burnetii can be excreted by infected goats through birth products and milk. The detection of C.

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Marine mammals host a great variety of parasites, which usually co-evolved in evolutionary arms races. However, little is known about the biology of marine mammal insect parasites, and even less about physical aspects of their life in such a challenging environment. One of 13 insect species that manage to endure long diving periods in the open sea is the seal louse, Echinophthirius horridus, parasitising true seals.

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AA-amyloidosis in Siamese and Oriental shorthair cats is a lethal condition in which amyloid deposits accumulate systemically, especially in the liver and the thyroid gland. The age at death of affected cats varies between one and seven years. A previous study indicated a complex mode of inheritance involving a major locus.

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In the northernmost German federal state Schleswig-Holstein, populations of European brown hares () show diverse densities and varying courses over the years. To examine differences in pathomorphological findings and infectious diseases as possible reasons for varying population dynamics, we assessed 155 hunted hares from three locations in Schleswig-Holstein from 2016 to 2020. We investigated the association of location, year, age, and sex of animals to certain pathomorphological findings and infectious diseases.

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In a 1-year survey of wild terrestrial predators in northern Germany, we found that 5 of 110 foxes were infected with contemporary avian influenza A(H5N1) viruses, forming a temporal cluster during January‒March 2023. Encephalitis and strong cerebral virus replication but only sporadic mammalian-adaptive viral polymerase basic 2 protein E627K mutations were seen.

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Exposure of wildlife to anticoagulant rodenticides (ARs) has been extensively documented for species directly or indirectly linked to pest rodents via the terrestrial food web. Recently, the scientific focus extended to a former blind spot, namely AR emissions to the aquatic environment, and provided clear evidence of AR residues in freshwater fish. As second-generation ARs are likely to be transferred along the aquatic food chain, a total of 122 Eurasian otter (Lutra lutra) individuals found dead in Germany between 2005 and 2021 were investigated to shed more light on resultant environmental risks.

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Recent reports documenting sporadic infections in carnivorous mammals worldwide with highly pathogenic avian influenza virus (HPAIV) H5N1 clade 2.3.4.

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Hepatic fibrinogen storage disease (HFSD) was diagnosed in a 5-month-old Wagyu calf with a history of recurrent respiratory disease. It was characterized by lethargy, dehydration, acidemia, and increased liver enzyme activities. Histologically, disseminated hepatocytes were swollen and showed a single, sharply demarcated, faintly eosinophilic cytoplasmic inclusion with a ground-glass appearance, with the nucleus in an eccentric position.

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The assumed definitive host of the heartworm (Onchocerdidae; Filarioidea) is the harbour seal (). This filaroid nematode parasitizing in cardiac ventricles and blood vessel lumina of harbour seals () has a low prevalence and seldom causes severe health impacts. The seal louse () is the assumed intermediate host for transmission of filariae between seals, comprising a unique parasite assembly conveyed from the terrestrial ancestors of pinnipeds.

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Background: The high susceptibility of carnivores to Suid Alphaherpesvirus 1 [SuAHV1, synonymous pseudorabies virus (PrV)], renders them inadvertent sentinels for the possible occurrence of Aujeszky's disease (AD) in domestic and wild swine populations. The aim of this study was to epidemiologically analyse the occurrence of PrV infections in domestic and wild animals in Germany during the last three decades and to genetically characterise the causative PrV isolates.

Methods: PrV in dogs was detected using standard virological techniques including conventional and real time PCR, virus isolation or by immunohistochemistry.

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Emerging contaminants are produced globally at high rates and often ultimately find their way into the aquatic environment. These include substances contained in anti-seizure medication (ASM), which are currently appearing in surface waters at increasing concentrations in Germany. Unintentional and sublethal, chronic exposure to pharmaceuticals such as ASMs has unknown consequences for aquatic wildlife.

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Article Synopsis
  • - A study examined archived tissue samples from three lions that had nonsuppurative meningoencephalitis and vasculitis, leading to the discovery of rustrela virus (RusV).
  • - Researchers used techniques like reverse transcription quantitative PCR, immunohistochemistry, and in situ hybridization to confirm the presence of RusV in different types of brain cells, including cortical neurons and astrocytes.
  • - The findings indicate that RusV is associated with neurological issues in lions, highlighting the virus's impact on brain health in these animals.
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The European brown hare () is a quite adaptable species, but populations have been decreasing for several decades in different countries, including Germany. To investigate infectious diseases as possible influences on observed population decline in the German federal state Schleswig-Holstein, 118 deceased free-ranging European brown hares were collected between 2017 and 2020 and underwent detailed postmortem examination with extended sampling. Infectious diseases were a major cause of death (34.

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