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The zoonosis-prone veterinarian.

A study of 1,182 Illinois veterinarians revealed that 833 had experienced an accident, and of these 833, 42.7% also had experienced a zoonosis. Brucellosis and animal bites were especially prevalent zoonoses. This percentage differed significantly (P less than 0.01) from the 32.4% of 349 accident-free veterinarians who had experienced zoonoses. The prevalence of zoonoses was even higher (50%) among veterinarians with a history of 3 or more accidents. The prevalence of 16 nonzoonotic health conditions was similar in veterinarians who had experienced an accident and in the total veterinary population, demonstrating a degree of specificity to the accident-zoonosis association. Of the subjects studied, 5.7% had experienced 16.5% of the events, accidents or zoonoses. The subgroup that had experienced 5 or more events and the subgroup that experienced no events differed in many characteristics from the total veterinary population. The biological importance of the characteristics of these veterinarians remains to be determined. The hypothesis was advanced that zoonoses can be considered occupational accidents in veterinarians and that certain veterinarians are zoonosis prone. If true, this hypothesis also might apply to certain communicable diseases in the general human population.

Accident Proneness

[Studies on the giardiasis as the zoonosis. III. Prevalence of Giardia among the dogs and the owners in Japan].

To obtain the basic data on the route of Giardia infection as zoonosis, of many regions in Japan, the feces from 2218 dogs were examined for detection of Giardia cysts. Giardia cysts were detected in 239 of the 2218 dogs (10.9%), which was the same as previous reports from America. None were found from the owners of 51 dogs in which Giardia cysts were detected. The detection rates of each facilities were, 68 of 366 (18.6%) from the breeder's kennels, 169 of 1811 (9.3%) in individual houses, 2 of 42 (4.9%) from research institutes. The detection rate of the breeder's kennels was higher than the other two facilities (p less than 0.05, p less than 0.001). The detection rates of Kanagawa and Shizuoka prefectures among 17 regions in Japan were higher than the others (p less than 0.001, p less than 0.05). Especially in Shizuoka, the rate of the individual houses was higher than from breeder's kennels. In kanagawa the rates of the individual houses and the breeders kennels were higher than the mean in Japan (p less than 0.001). Therefore one must instruct the breeders when teaching health education to included zoonosis, and that the detection rate of the age groups of less than 3 years old was high-221 of 1276 (17.3%). Since the detection rates of Giardia cysts in the dogs were low, the possibility that human infection acquired from dogs was low. However, some of patients with giardiasis we encountered had never been abroad, and it is not yet clear whether Giardia is strictly host specific or not, so attention should be paid to the possibility of cross-infection between man and animals.

Animals

Systemic lupus erythematosus--a zoonosis?

The medical history was obtained and a physical examination carried out--in addition to an immunological investigation of the blood and skin--on 11 dogs in the ownership of patients with systemic lupus erythematosus (SLE). The results were compared with those obtained from a control group and it was found that they do not support the hypothesis that SLE is a zoonosis.

Animals

An emerging zoonosis in Scandinavia -- nephropathia epidemica.

The paper reviews as zoonosis the disease called Nephropathia epidemica in north European countries. The etiology is as yet unsolved but a viral one is highly suspected with small rodents (voles and mice) as the source of infection. Based on the epidemiological peculiarities of the disease, the ecology of the agent and hypothetical ways of transmission of infection from small rodents to man are discussed.

Adult

Role of S. wien in the epidemic epizootiology of salmonellosis, zoonosis of dramatic distribution.

The appearing of S. wien and its diffusive and pathogenic distribution are reported within the general framework of Salmonelloses and the problems of epidemiological and epizootiological nature that arise this zoonosis. The measures to be adopted are also stressed in view of a more strict control and protection of human and animal health together with environmental hygiene from Salmonella infection and other Enterobacteria which are increasingly met inhuman and animal pathology. In future notes the components of this worldwide problem of hygiene and economy will be examined in detail.

Animals

[Parasitosis and zoonosis in mice and rats caught in and around Beytepe Village (author's transl)].

This helmintho-zoonotic investigation has been made on 106 mice and rats from different species caught in and around of Beytepe Village, these animals are reservoirs for a number of zoonotic parasites and most of these parasites are causative agents of zoonosis in man. The parasites found and their prevalences are; Sphacia obvelata: 42.4%, Sphacia muris: 28.3%, Aspicularis tetraptera: 14.1%, Ascaris lumbricoides (Pseudo.) 2.8%, Gongylonema neoplasticum: 1.8% Trichuris muris: 6.6%, Capillaria gastrica: 2.8%, Taenia pisiformis(lar.) 3.7%, Taenia taeniformis (1.) 3.7%, Hymenolepis nana: 5.6% Hymenolepis diminuta 3.7%.

Animals

The occurrence of babesiasis affecting small terrestrial mammals and the importance of this zoonosis in Europe.

A short survey is given of the occurrence of babesiasis affecting small terrestrial mammals in some parts of Europe. Results obtained in studies of 7,038 small terrestrial mammals (42 species) from Czechoslovakia, Austria, Hungary, Yugoslavia and Bulgaria, show the distribution of Babesia microti in these countries. The authors found babesias in the following host species: Neomys anomalus, Clethrionomys glareolus. Microtus arvalis, M. agrestis, Apodemus agratius, A. flavicollis, A. sylvaticus and Mus musculus. The average incidence was very low-0.2% and varied in individual countries from negative to 0.7%. Problems of the natural foci of B. microti in Central Europe and discussed and hitherto recorded cases of Babesia infections in man are summarised. The epidemiological importance of the unspecific mammal hosts of B. microti is emphasised and the necessity of surveillance of this zoonosis in Europe is pointed out.

Animals

Viral zoonosis and human cancer: a perspective.

Zoonotic viruses, which are pathogens naturally transmitted from animals to humans, pose a significant and evolving challenge to public health. Although most known zoonotic viruses do not exhibit the persistence typically necessary for viral oncogenesis, the potential cancer-causing effects of these infections remain unclear. Persistent infection, latency, or abortive replication within susceptible but non-permissive human cells may allow some animal-origin viruses to evade immune clearance, disrupt host cell signaling, and induce genomic instability-key features of cancer development. Evidence from both in vitro and in vivo studies indicates that certain animal viruses can enter human cells, integrate their genetic material, or express oncogenic proteins, even without completing full replication. These mechanisms resemble those of established human oncoviruses and suggest that, under specific host and environmental conditions, zoonotic viruses could contribute to neoplastic transformation. Given the increasing frequency of human-animal interactions through companionship, agriculture, wildlife trade, and food production, multidisciplinary research combining virology, oncology, and epidemiology is essential. Such efforts should focus on sensitive molecular detection, mechanistic studies, and population-based investigations to better understand the long-term cancer risks associated with zoonotic viral infections and to guide effective prevention strategies.

Cancer

Fatal septicemia due to Mycoplasma arginini: a new human zoonosis.

A 64-year-old slaughterhouse worker with advanced non-Hodgkin's lymphoma developed septicemia and pneumonia. Mycoplasma arginini, a wall-free prokaryote found in a variety of domestic animal hosts, was repeatedly isolated from blood and bronchial washings from the patient. Immunosuppression, in part caused by hypogammaglobulinemia, probably played a key role in predisposing the patient to a fatal infection. This case suggests that animal mycoplasmas should be considered in the list of infectious agents acquired by immunosuppressed hosts.

Bacteremia

[Clinicobacteriological study of Pasteurella multocida as a zoonosis (1). Condition of dog and cat carriers of Pasteurella, and the influence for human carrier rate by kiss with the pets].

Pasteurella multocida is a gram-negative short rod-shaped bacteria, which is a part of the indigenous flora of the oral cavity of many animals other than man. The number of reports on cases of infections with this bacterium due to animal bites and/or scratches, bacterial infections of the respiratory tract, sepsis due to this organism and death caused by the bacteria have been increasing in recent years. We investigated P. multocida in the hair and oral cavity of 3 dogs and 29 cats according to the classification of Mutters et al.. We also studied the relationship between the carrier rate for Pasteurella in the oral cavity and kissing of pets in 24 pet owners (3 dogs and 11 cats). No P. multocida was isolated from the hair of neither dogs nor cats. One strain of P. multocida subsp. multocida and two strains of P. stomatis, were isolated from the oral cavity of dogs, and 35 strains of Pasteurella were isolated from the oral cavity of cats. Two strains of P. multocida subsp. multocida, whose biochemical properties were different, were detected in the oral cavity of one cat. In three cats, Pasteurella other than P. multocida subsp. multocida was isolated from the same oral cavity. No Pasteurella was detected in the oral cavity of 19 pet owners who had not kissed their cats, whereas P. stomatis was isolated from the oral cavity of one of 2 pet owners who had kissed their cats and in 2 of 3 pet owners who had kissed their dogs (the same bacteria was isolated from a dog that was being kept by some of these positive pet owners).(ABSTRACT TRUNCATED AT 250 WORDS)

Animals

Is encephalitozoonosis a zoonosis?

Encephalitozoon cuniculi has often been cited as a human pathogen although few cases (of disease) have been described in the literature. A discussion of these cases suggests that this microsporidium should not be regarded as a pathogen of man.

Animals

[Is Aujeszky's disease a zoonosis?].

Several cases of human illness with symptoms suggestive of Aujeszky's Disease (AD) at an outbreak of the disease in cattle and swine were evaluated during this study. Additionally serological studies of people in the group at high risk for illness caused by Aujeszky's Disease Virus (ADV) were carried out. In a herd of 180 bulls sudden clinical disease occurred with symptoms of muscular tremors, salivation, sweating and severe pruritus of the head. The clinical disease lasted two to eight hours and finished in death. In 7 days 10 bulls died and 60 were either killed or culled. A biological test for AD was positive. ADV was identified in the brain of a dead bull. Serological studies for the bulls were negative, however 92.9% on the premises farm were asymptomatically infected. On third to the fifth day of disease in the cattle clinical signs appeared in six of seven workers which had direct contact with diseased cattle. A pruritus of the palms, which spread onto the lower and upper arms, shoulders and back lasted several days.

Adult