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The importance of parasitic zoonoses continues to increase on both local and global scales as interactions between people and animals become more frequent through global travel, intensification of agriculture, habitat devastation, and changes in world trade patterns. A current and real threat is the potential for a deliberate introduction of a zoonotic disease through the prospect of bioterrorism. Parasitic zoonoses represent significant problems in public health, animal agriculture and conservation, and the meat industry. There is an urgent need for integration of medical and veterinary services, continuous disease surveillance in both humans and animals, the teaching of zoonoses to medical doctors, and intensified research on zoonotic agents and diseases. The convergence of both public health and veterinary services currently represents a real challenge for managing zoonotic diseases.
The conducted study was aimed at determining the level of contamination of broiler chicken carcasses by Campylobacter sp. at selected stages of post-slaughter processing: after defeathering, evisceration, washing, and chilling. Swabs were collected from a 20 cm² skin surface from the neck and cloacal areas and from the wall of the body cavity. The swabs were fixed in flat-bottom flasks with 20 ml of sterile diluent. The resultant suspension was inoculated into two parallel Petri dishes with selective culture media: Karmali agar and CCDA agar. The analyses demonstrated that during the processing, Campylobacter sp. was disseminated on the surface of broiler chicken carcasses. The highest contamination of the carcasses, reaching on average log 1.71 cfu/cm² was observed after their evisceration, especially on skin in the neck area - log 1.96 cfu/cm². In the washed carcasses, the cell count of Campylobacter decreased to a value of log 0.45 cfu/cm². A similar degree of contamination, i.e. log 0.38 cfu/cm², was recorded after chilling.
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Tularemia – serious zoonotic disease

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Tularemia is an acute, infectious zoonotic disease caused by a smal. aerobic, intracellular, gram-negative bacillus Francisella tularensis. Tularemia was firstly described towards the end of nineteenth century in Japan, however, the name Francisella comes from Edward Francis, an American researcher who in 1911 detected this bacterium in squirrels in Tulare County, California. In Poland tularemia in humans was recognized for the first time in 1949. In the years 1949 to 2009, over 600 tularemia cases were recorded in Poland, with one fatality in 1983. Initial work on the use of F. tularensis as a biological weapon was carried out in the 30s of the twentieth century simultaneously in the United States, Soviet Union and Japan. The natural reservoirs of the micro-organism are rodents and lagomorphs, which can be a source of infection for other animals and humans. Human infection occurs through direct contact with sick animal. inhalation of dust contaminated with feces of sick animals and it takes place mainly in the farms involved in the animal production, to a lesser extent as a result of contaminated food and water.
Opracowanie stanowi kontynuacją oceny sytuacji epizootiologicznej zawartej w podręczniku Z. Anusza „Zarys epidemiologii chorób zakaźnych", ze szczególnym uwzględnieniem lat siedemdziesiątych i osiemdziesiątych. Rozeznanie sytuacji epizootiologicznej chorób odzwierzęcych nie jest pełne ze względu na przestarzały i nieracjonalny system ich zgłaszania i rejestracji. Przedstawione dane wskazują, że choroby odzwierzęce wśród zwierząt w naszym kraju stanowią problem o wiele ważniejszy niż się ogólnie przypuszcza.
Between 1994 and 1999, 219 red foxes (Vulpes vulpes) were collected in northern Belgium and examined for intestinal helminths. The effects of host-related (age, sex, body mass/size ratio) and temporal factors on the prevalence and on the number of parasite species per individual host were investigated. The following parasites were found: cestodes Echinococcus multilocularis (1.8%), Dipylidium caninum (0.9%) and Taenia spp. (2.7%), nematodes Toxocara canis, Toxascaris leonina (47.9%) and Uncinaria stenocephala (31.5%), and trematode species (0.9%). Of all foxes, 82 (37.4%) proved to be fully negative. We found no host-related (sex, age) nor temporal effect on parasite occurrence and on the number of parasite species per individual host. Unparasitised adult foxes had a higher body mass/size ratio than hosts with intestinal parasites and also the number of parasite species per individual was negatively related with this rough index of host body condition. The presence of these zoonotic parasites in a region with a very high human population density urges a close surveillance of these parasites as they may lead to expansions of helminthoses in (northern) Belgium. Finally, this study emphasizes the need to study the prevalence of intestinal helminths in regions that are recently colonised by red foxes since such studies may add to our understanding of the emergence, the temporal spread and the persistence of zoonoses in Europe.
Leptospirosis is a widespread although recently neglected zoonosis recognized worldwide. The disease seems to be underestimated, especially in countries located in the temperate climatic zone. The presented article concerns the main characteristics of leptospirosis and describes formerly known and recently observed environmental, occupational and recreational risk factors significant in the spreading and pathogenesis of the disease. The aspects of epidemiology significant in the temperate climatic zone are emphasized. The majority of cited articles present cases of the disease reported from Europe or North America. Climatic changes (warming) and extreme weather events such as floods are potential risk factors of leptospirosis. Also, some socio-economic phenomena, such as the intensive migration of people resulting in the transfer of the infections acquired in tropical countries, or worsening of economic status in the cities, increase the probability of disease. Apart from the danger connected with rodents, which are the main vectors of leptospires, occurrence of the disease in dogs and cats can generate a higher risk of infection for humans. Infections may also be acquired during various types of agricultural work and during recreational activities, such as swimming. The results of recent investigations show that ticks are also potential vectors of leptospires. The more frequent emergence of leptospirosis in countries located in the temperate climatic zone emphasize the need to verify knowledge related to the risk of its appearance, and to consider this disease during diagnostic processes.
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Babesiosis in humans is caused by infection with various species of Babesia (Apicomplexa, Piroplasmida), mainly transmitted by an arthropod vector – Ixodes spp. ticks. This review will focus on blood transfusion as another mode of Babesia transmission, especially in endemic areas, as well as the impact of human babesiosis on transfusion medicine.
Brucellosis is a zoonosis with a worldwide distribution and remains a significant public health problem mainly in the developing world. In this study we evaluated the in vitro activities and synergistic effects of antibiotic combinations against blood culture isolates of Brucella spp. In vitro susceptibilities of 76 blood culture isolates of Brucella melitensis and one blood culture isolate of Brucella abortus to doxycycline, streptomycin, gentamicin, trimethoprim-sulfamethoxazole, moxifloxacin, rifampin, ciprofloxacin, and tigecycline were examined by Etest method. For 37 patients with Brucella spp. isolates (36 B. melitensis, 1 B. abortus), antibiotic combinations used for treatment were identified with those tested in vitro for synergy using Etest method. Trimethoprim-sulfamethoxazole and tigecycline were the most active of the compounds tested with MIC₉₀ value of 0.094 mg/1. Among antibiotic combinations only streptomycin-rifampin combination was synergistic for one Brucella spp. isolate. The other antibiotic combinations revealed antagonistic or indifferent activity. Complete clinical response was achieved in all patients. Further studies are required to determine the correlation between the antimicrobial susceptibility and synergy test results with the clinical course of patients. Brucellosis can be adequately treated with existing regimens in our region.
In this paper we report the occurrence of zoonotic species of Cryptosporidium (C. ubiquitum and C. parvum subtype IIaA15G2R1) and the host-specific Giardia duodenalis genotype E in a sheep farm from Brazil. Fecal specimens were collected from 100 animals and screened for the presence of G. duodenalis and Cryptosporidium spp. by enzyme immunoassay (EIA) and polymerase chain reaction (PCR). Restriction fragment length polymorphism (RFLP) and sequence analysis of selected samples was used to confirm the species and to characterize the isolates. Of 100 specimens, 34 were positive for Giardia (34%) and 25 were positive for Cryptosporidium (25%). The prevalence of Giardia and Cryptosporidium was higher in lambs than in ewes. Co-infection was observed in 14% of animals. All G. duodenalis isolates belonged to genotype E. The genetic characterization performed in 22 Cryptosporidium-positive samples revealed the presence of zoonotic C. ubiquitum and C. parvum in 76% (19/25) and 12% (3/25) of infected animals, respectively. The presence of zoonotic Cryptosporidium subtypes in lambs was of epidemiological and public health relevance.
The filarial nematode Dirofilaria repens is currently considered to be one of the most extensively spreading human and animal parasites in Europe. In Ukraine, reporting cases of dirofilariasis has been mandatory since 1975, and the disease was included in the national surveillance system for notifiable diseases. Up until December 31st 2012, a total of 1533 cases have been registered, with 1465 cases occurring within the previous 16 years. Most of the cases of dirofilariasis were registered in 6 regions: Kyiv, and the Donetsk, Zaporizhzhya, Dnipropetrovsk, Kherson and Chernihiv oblasts. In the years 1997–2002 the highest incidence rate was noted in the Kherson oblast in the south of the country (9.79 per 100 000 people), and the lowest in western Ukraine (0.07–1.68 per 100 000 people). D. repens infections were registered in all oblasts. Parasitic lesions were most often located in the head, the subconjunctival tissue and around the eyes. D. repens lesions were also found in the limbs, torso, male sexual organs, and female mammary glands. Dirofilariasis was diagnosed in persons aged from 11 months to 90 years old, most often among people between 21–40 years of age. Most patients had only one parasitic skin lesion; the majority of isolated nematodes were female. The results of our analysis point to a constant increase in D. repens dirofilariasis incidence in humans in Ukraine. Despite educational efforts, infections have become more frequent and the territory in which the disease occurs has enlarged to encompass the whole of Ukraine. Nevertheless, the Ukrainian sanitary-epidemiological services managed to achieve some measure of success, e.g. by creating a registration system for D. repens infections and establishing proper diagnostics for the disease.
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