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At least 19 recordsLinked to original sources

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

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

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

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

Pig-bel--a zoonosis?

It is postulated that the combination of a very low protein diet, with low pancreatic tryptic activity, plus the continual consumption of sweet potato trypsin inhibitors leads to inadequate proteolysis when a meal containing meat contaminated with C. perfringens type C and its beta toxin is consumed. The necrotizing pathogenic process concluding as segmental gangrene is set in motion by toxin produced under altered dietary conditions first by motor paralysis via beta toxin, followed by villous attachment and colonisation by ingested or resident C. perfringens type C in the gut. Necrobiosis is maintained by further toxin production which may be blocked in immune individuals. The endemicity of the disease is governed by the amount of C. perfringens type C in both the general and gut environments, the latter determined by dietary influences and the protein nutrition of the host. A hypothesis put forward is that the organism is carried and dispersed by the domestic pig and man becomes an incidental host. Infectivity only occurs when critical ecological factors exist in the small gut of humans. Prevention in the short term is possible with a toxoided vaccine using three injections given at one month and twelve month intervals.

Animals

[Facts and speculations on viruses in food (author's transl)].

The danger to which man is exposed as a result of viruses contained in food differs basically from the risk to man caused by bacteria, fungi or their toxins. With respect to viral injuries it is not the specific diseases (e.g. hepatitis and polio) that are in the foreground but the much more dangerous noxious groups whose cause/effect relationships are rather complex. 1. the oncogenic risk, 2. synergistic interactions with opportunistic problem viruses, 3. slowly developing chronic diseases and persistent infections with their indirect injuries, 4. new infectious pathogens (viroids). Viral contamination of food can be exogenous or endogenous. Exogenous contamination is possible by: 1. specific human-pathogenic viruses, 2. polyphagous, human-pathogenic and animal-pathogenic viruses (zoonosis), 3. animal-pathogenic viruses only, 4. fish viruses, 6. bacteriophages, 7. fungal viruses. The viruses of group 1 and 2 are of practical importance, those of group 6 and 7 are it occasionally. Endogenous contamination is caused when an animal suffered from a viral infection at the time of slaughter or product extraction (e.g. milk, egg, fish) or when the animal has picked up a virus shortly beforhand. As far as endogenous contamination is concerned, a distinction must be made between 1. primarily biological and 2. primarily mechanical contamination. For the first, mainly the clinically inapparent especially persistent infections and viraemic stages at the end of incubation are dangerous. In both cases the animal is clinically healthy. In primarily biological contamination the zoonosis viruses predominate. In addition the bacteriophages must be taken into account. Primarily mechanical contamination is restricted to fish, molluscs, milk and eggs. The possibilities and consequences of exogenous and endogenous contamination are discussed. The risk of viral transmission by foodstuffs depends chiefly on the tenacity of the virus in the affected food, but also on its virulence and concentration. Basic considerations are discussed. Practically from any useful, healthy animal the most varied viruses can be isolated. In order to avoid destroying the confidence of the consumer, it is necessary to take stock of the following: 1. viral contamination in foodstuffs demonstrated so far 2. verified human diseases caused by the intake of virus-contaminated foodstuff and 3. speculations on imaginable consequential damage caused by the consumption of food containing virus. This is also dealt with in the paper. In a final, critical review the importance of virus contained in food is discussed comprehensively from a scientific, legal and practical point of view.

Animals

Re-emerging Marburg virus disease in Africa: spillover ecology, geographic expansion, and surveillance vulnerabilities.

Marburg virus disease (MVD) is re-emerging across Africa as a high-consequence zoonosis shaped by expanding ecological suitability, repeated spillover, and uneven surveillance capacity. This review synthesizes current evidence on the ecological, epidemiological, and operational determinants of contemporary Marburg virus (MARV) emergence. We conceptualize MVD as an ecological-emergence system produced by interactions among reservoir-host biology, environmental change, human exposure, health-system readiness, and mobility, rather than as a series of isolated outbreaks. Recent detections in multiple African regions indicate wider enzootic circulation than previously recognized and support repeated, reservoir-associated introductions from distributed ecological foci. Spillover risk is heightened where mining, land-use change, agricultural encroachment, settlement growth, climate-sensitive habitat disruption, and population movement increase contact with Egyptian rousette bats (Rousettus aegyptiacus) and contaminated roost environments. Following primary spillover, diagnostic delays, fragmented surveillance, limited laboratory decentralization, healthcare-associated transmission, and mobility-linked exposure can enable outbreak amplification and delayed recognition. Serological findings further suggest possible "shadow epidemiology," with unrecognized or mild MARV infections occurring outside confirmed outbreak chains. Critical preparedness gaps persist in ecological risk mapping, longitudinal reservoir surveillance, decentralized molecular diagnostics, genomic sequencing, data integration, and cross-border early warning. Future preparedness should move beyond reactive containment toward integrated One Health approach combining predictive ecological surveillance, rapid community-level detection, real-time genomics, infection prevention, risk communication, and regional coordination to identify spillover early and prevent human transmission.

Animals

The problem of human leptospirosis in Barbados.

The results of a retrospective study of human leptospirosis cases occurring in Barbados during the period 19-68-74, and of serological findings among high risk occupational groups, fever cases and health centre patients monitored for the disease during 1975-77, indicate that infection by serotype fort-bragg of the Autumnalis group is widespread in this Caribbean island. The occupational groups most affected are sanitation workers and sugar-cane workers. Results of serological tests conducted at the principle hospital are comparable with the results obtained by the microscopic agglutination reference test procedure conducted at the Pan American Zoonosis Centre (CEPANZO).

Adolescent

Snake-to-human transmission of Aeromonas (Pl) shigelloides resulting in gastroenteritis.

A healthy young man developed acute gastroenteritis after handling an infected bao constrictor. The animal died after contracting "mouth-rot disease", a progressive ulcerative stomatitis of snakes charactistically caused a Aeromonas species. Stool cultures from the patient yielded a heavy growth of Aeromonas (Plesiomonas) shigelloides but no other enteric pathogens. Treatment wit sulfamethoxazole-trimethoprim resulted in rapid relief of clinical symptoms. Aeromonas species are not considered part of the normal human fecal flora and gastroenteritis due to this organism is rare. Furthermore, this case appears to represent a new zoonosis: human Aeromonas (Plasiomonas) gastroenteritis derived from contact with an infected animal host.

Acute Disease