Publications by authors named "Caroline F Frey"

is an intracellular protozoan parasite of veterinary and public health importance. Infection may lead to abortion in susceptible pregnant animals and women, and potentially fatal health complications in immunocompromised individuals. In this study, we aimed to provide an update on the seroprevalence of, and risk factors for, antibodies in cattle from Qena, southern Egypt.

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  • - The Brazilian porcupine, a nocturnal rodent from South America, faced health issues in a Swiss captive colony, experiencing severe diarrhea linked to the presence of specific parasites that prompted repeated treatments with metronidazole and fenbendazole.
  • - Despite the treatments initially reducing parasite cysts, eggs were still found in branch bark and in some animals months later, prompting further cycles of treatment.
  • - Additional mite infestations were noted, with treatment showing limited effectiveness, indicating individual susceptibility and emphasizing the need for thorough cleaning of their environment to prevent reinfections.
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  • The livestock industry is crucial for Egypt's economy, providing food, jobs, and financial support; however, protozoan parasites like Besnoitia besnoiti and Neospora caninum lead to substantial economic losses in cattle and other ruminants.
  • A study conducted on 440 animals across Cairo, Giza, and Beni Suef found seroprevalence rates of 7.7% for B. besnoiti, 13.2% for N. caninum, and 0.9% for mixed infections.
  • Results indicated that B. besnoiti infection was more prevalent in adult cattle compared to sheep and goats, while N. caninum showed higher rates in cattle but no significant
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Lamanema chavezi is an entero-hepatic strongylid parasite specific to South American camelids. It has been reported only on few occasions outside South America. Due to its hepatic migration, it can cause extensive liver damage, leading to granulomatous and fibrotic hepatitis and manifesting with lethargy, anorexia, and even death.

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In this study, we investigated faecal specimens from legally hunted and road-killed red foxes, raccoons, raccoon dogs, badgers and martens in Germany for parasites and selected zoonotic bacteria. We found that Baylisascaris procyonis, a zoonotic parasite of raccoons, had spread to northeastern Germany, an area previously presumed to be free of this parasite. We detected various pathogenic bacterial species from the genera Listeria, Clostridium (including baratii), Yersinia and Salmonella, which were analysed using whole-genome sequencing.

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Brucellosis and coxiellosis/Q fever are bacterial infections caused by species and , respectively; camels are highly susceptible to both pathogens. Trichinellosis is a parasitic infection caused by various nematode species. Reportedly, camels are susceptible to experimental infection with spp.

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Bovine eosinophilic myositis is an inflammatory myopathy characterized by multiple focal or diffuse grey to green patches leading to condemnation of affected carcasses. Although its etiology is still uncertain, there is evidence that species may play a role in the development of eosinophilic myositis. The goal of the present study was to identify spp.

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is an important zoonotic parasite worldwide, but it has received limited attention in Ukraine. A seroepidemiological study was conducted and samples from 452 wild boars that had been hunted in 2006-2011 in 23 of the 25 regions of Ukraine were tested to estimate . seroprevalence.

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Spirorchiidosis, caused by blood flukes of the genus is a disease of great concern for the critically endangered European pond turtle (EPT; ) in Switzerland. The endogenous life cycle of the parasite often leads to systemic inflammatory reactions, thrombosis, and death. Praziquantel (PZQ) is the treatment of choice against adult spp.

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  • Echinococcus multilocularis is a parasitic cestode causing a deadly disease called alveolar echinococcosis, primarily spread by red foxes in Europe.
  • The study investigated genetic diversity among E. multilocularis isolates from 19 European countries, analyzing 4,968 base pairs from five mitochondrial genes and identifying 43 different haplotypes.
  • Findings indicated that most of the isolates shared four predominant haplotypes concentrated in mainland Europe, while Svalbard's isolates were genetically distinct, highlighting the need for more research in underrepresented eastern European regions to understand genetic variability.
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  • - In Egypt, pork production is mostly done on a small scale in backyards without proper sanitary measures, which can lead to exposure to harmful pathogens in pigs.
  • - A study conducted at Cairo's only licensed pig abattoir tested 332 serum samples and found a significant presence of food-borne zoonotic parasites, with specific seroreactivities noted for various parasites.
  • - The research revealed varying levels of seroprevalence based on location in Cairo and found that female pigs had a higher rate of certain antibodies compared to males, marking the first seroprevalence report for these parasites in Egyptian pigs.
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Toxoplasma gondii is a coccidian parasite able to infect all warm-blooded animals and humans. Rodents are one of the most important intermediate hosts for T. gondii, but little is known about infection in beavers and its clinical relevance.

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Background: The role of the domestic cat as definitive host for Echinococcus multilocularis and thus in environmental contamination with eggs has not yet been entirely resolved. This study aimed to assess the prevalence of E. multilocularis and other gastrointestinal parasites in Swiss domestic cats and to compare the diagnostic sensitivity of different methods for the detection of intestinal taeniid infection.

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is a successful coccidian parasite able to infect all warm-blooded animals and humans, causing one of the most common zoonoses worldwide. The Eurasian lynx () is one of the feline potential hosts of in Switzerland, but little is known about its epidemiological role as a definitive or intermediate host. Serum samples from 183 Eurasian lynx collected from 2002 to 2021 were tested for antibodies to by ELISA, IFAT and in case of inconclusive results, immunoblot.

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The Barki sheep industry is becoming increasingly important in Egypt because of the high quality of their meat and wool. This sheep breed is also commonly known for its resistance to arid and harsh environmental conditions. Such characteristics can be exploited in solving the problematic situation of inadequate animal protein for human consumption, particularly under climatic changes.

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Introduction: and are closely related obligate intracellular protozoan parasites. They are considered to be the major causes of infectious abortions and congenital abnormalities in livestock worldwide resulting in huge economic losses. Currently, there are no reports on the prevalence of neosporosis or toxoplasmosis in cattle in Beheira, Egypt's most important region for cattle industry.

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causes one of the most frequent parasitic infections in vertebrates on earth. The present study aimed to assess the occurrence of infection in cat-hunted wild small mammals, and to determine the circulating genotypes in cat prey. There is evidence suggesting that may manipulate rodents' behaviour enhancing transmission to their definitive feline host by facilitating predation.

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Background: and are major protozoan parasites of worldwide distribution and significance in veterinary medicine and, for , in public health. Cats and dogs, as final hosts for and respectively, have a key function in environmental contamination with oocysts and, thus, in parasite transmission. Very little is known about the prevalence of infections in dogs and cats in Egypt, and even less about the prevalence of in the same hosts.

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Toxoplasmosis, neosporosis, and brucellosis are devastating diseases causing infectious abortion and, therefore, substantial economic losses in farm animals. Toxoplasmosis and neosporosis are caused by the intracellular protozoan parasites () and (), respectively. Brucellosis is a bacterial disease caused by numerous species in multiple hosts.

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Introduction: is an important cause of abortion in cattle worldwide. Infection in cattle occurs horizontally by ingestion of oocysts shed by canids or vertically, from an infected dam to the fetus, and may result in abortion, stillbirth, or birth of seropositive offspring. The control of bovine neosporosis is difficult and costly.

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Introduction: Toxoplasma gondii and Neospora caninum are closely related intracellular protozoan parasites of medical and veterinary concern by causing abortions and systemic illness. Limited or ambiguous data on the prevalence of T. gondii and N.

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The present study was performed to evaluate the in vivo efficiency of Curcurbita pepo (pumpkin) seeds, Cymbopogon citratus (lemongrass) essential oil and Plantago lanceolata (ripleaf) leaves against helminth infections in laying hens. In the first experiment, 75 Lohmann LSL Classic hens naturally infected with Ascaridia galli were assigned to groups of five; groups were randomly assigned to one of three treatments with five replicates each (untreated control; lemongrass oil: 1 g/bird/day; pumpkin seeds: 10 g/bird/day). Feed consumption and egg production were continuously recorded, individual faecal egg counts were determined weekly, and E.

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The prevalence of and antibodies in raw milk samples was estimated in different ruminants and Egyptian governorates. Of 13 bulk milk samples tested by ELISA, five (38.5%) were positive for antibodies to , and two samples were additionally positive for antibodies to , resulting in a seroprevalence of 15.

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and infections are important causes of abortion in ruminants. Besides, meat from infected animals represent a major infection source for humans. The occurrence of these protozoan parasites in Switzerland was investigated both, in a nationwide cross-sectional serological survey, and by molecular methods in aborted sheep and goat foetuses.

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