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Zoonoses.

Animal-transmitted diseases are remarkable not because they occur frequently but because they are almost always unsuspected and unrecognized. The physician who attends an ill veterinarian or zookeeper will immediately suspect an exotic disease. The pediatrician who attends the child who recently received a puppy for his birthday will not. Our public attitude toward animals as carriers of disease is utterly thoughtless. If a human were to urinate and defecate in the street or park he would be incarcerated without delay. Yet we tolerate and even encourage the same activity in dogs, which are known to carry scores of diseases to humans. Animals as pets are here to stay. Children are their frequent companions. It would serve all those who deal with the medical problems of children to know as much as possible about the diseases carried by animals, for their consequences are quite significant.

Animals↗

The shifting landscape of tick-borne zoonoses: tick-borne encephalitis and Lyme borreliosis in Europe.

The two major vector-borne diseases of northern temperate regions, tick-borne encephalitis (TBE) and Lyme borreliosis (LB), show very different epidemiological patterns, but both have increased significantly in incidence since the 1980s. Insight into the temporal dynamics of TBE, gained from statistical analysis of spatial patterns integrated with biological explanation, suggests that the recent increases in TBE cases in Central Europe and the Baltic States may have arisen largely from changes in human behaviour that have brought more people into contact with infected ticks. Under forecast climate change scenarios, it is predicted that enzootic cycles of TBE virus may not survive along the southern edge of their present range, e.g. in Slovenia, Croatia and Hungary, where case numbers are indeed decreasing. New foci, however, are predicted and have been observed in Scandinavia. At the same time, human impact on the landscape, increasing both the habitat and wildlife hosts of ticks, has allowed tick populations to multiply significantly. This probably accounts for a genuine emergence of LB, with its high potential transmission rate, in both the USA and Europe, although the rate of emergence has been exaggerated by improved surveillance and diagnosis.

Animals↗

[Investigation on zoonoses among veterinary technicians].

We conducted a survey on how much veterinary clinics staff, mostly veterinary technicians, know about zoonosis and how extensively they inform pet owners of ways to prevent zoonosis. The number of people who took part in the survey was 1,057. The ratio of people who said their knowledge on zoonosis is "neither sufficient nor insufficient" was 53.8%, which is larger than the ratio of people who replied "sufficient" or "insufficient." The percentage of those who said their way of giving information on zoonosis to pet owners is "neither sufficient nor insufficient" was 52.4%. The ratios of people who knew about Spirometra erinacei, Dipylidium canium or Giardia lamblia were 64.7%, 73.6% and 57.6%, respectively. The longer they worked, the more they knew about Cryptosporidium spp. (20.1%), Hymenolepis nana (31.8%), Echinococcus spp. (45.7%), Ancylostoma spp. (73.3%), Dirofilaria immitis (80.5%), Toxoplasma gondii (82.4%), and Toxocara canis (86.5%). It seems that systematic continuing education and opportunities to acquire new knowledge are not sufficient for those working in veterinary clinics, and this needs to be corrected.

Adult↗