Epidemiology of hydatid disease in Sardinia: a study of fertility of cysts in sheep.

  title={Epidemiology of hydatid disease in Sardinia: a study of fertility of cysts in sheep.},
  author={G. Bortoletti and F. Gabriele and V. Seu and C. Palmas},
  journal={Journal of helminthology},
  volume={64 3},
Hydatidosis, caused by Echinococcus granulosus, is a cyclozoonotic disease of economic significance in Sardinia. The life-cycle involves stray and sheep dogs as definitive hosts and sheep, pigs, goats and cattle as intermediate hosts. The most important intermediate host is sheep, due to home slaughtering with ready access of the viscera to dogs. This survey was undertaken in 1987 to ascertain the epidemiological significance of sheep in maintaining the life-cycle. A total of 700 (91.3%) of 767… Expand
Prevalence of hydatidosis and fertility of hydatid cysts in food animals in Northern Greece.
Among the 4 species slaughtered for human consumption, sheep exhibited the highest frequency of hydatidosis and the highest proportion of fertile cysts. Expand
Hydatidosis of cattle and sheep, its economic importance and Echinococcus granulosus among stray dogs in South Wollo, Ethiopia
Zoonotic cestode need deserve due attention in order to safe guard the public and reduce the economic losses in animals, thus relevant control measures  pertinent to the prevailing socioeconomic factors in the area were recommended. Expand
Cystic echinococcosis in slaughtered sheep in Sardinia (Italy).
The age of sheep was positively associated with the probability of infection that increased 1.15 fold for each further year of age and the probability to find fertile cysts in the lungs was three times higher compared to the liver and it increased with the age of the sheep. Expand
Prevalence of hydatidosis and fertility of hydatid cysts in sheep in Kirikkale, Turkey.
It is indicated that hydatid cysts are common in sheep and the fertility rate of cysts is quite high, and the most common locations were in the liver and lung. Expand
Cystic echinococcosis in sheep in Sardinia. Changing pattern and present status.
The epidemiological status of cystic echinococcosis in sheep in Sardinia over the 20 years since the last control attempt and the trend of CE transmission according to surveys carried out from 1952 to 2010 has been analysed and the results are discussed in the light of the significant socio-economic and structural transformations that have actually modified the zoonosis scenario on the island. Expand
Hydatidosis of food animals in Greece: prevalence of cysts containing viable protoscoleces.
The viability rate of hydatid cysts was investigated in animals slaughtered in the abattoir of Thessaloniki, Macedonia, Greece and all fertile cysts contained viable protoscoleces. Expand
Comprehensive Account on Prevalence and Characteristics of Hydatid Cysts in Livestock from Pakistan
Differences in frequency of hydatidosis were observed with highest overall prevalence in buffaloes and sheep and highest percentage of fertile cysts was observed in liver of sheep, and solitary form of cysts had higher fertility rate than multiple form. Expand
Cystic echinococcosis in the sheep: causes of its persistence in Sardinia
Sardinia represents a peculiar model for CE study, because there are particular conditions that allow Echinococcus granulosus to complete its life cycle and some social and economical factors support the persistence of sheep CE. Expand
Prevalence of hydatidosis in slaughtered animals in Thrace, Turkey.
In this study, 640 cattle and 742 sheep slaughtered at twelve abattoirs in Thrace were investigated for hydatid cysts and cysts were encountered in the livers of 96%, in the lungs of 26.9%, and in the spleen of 3.85%. Expand
Prevalence of Hydatid Cyst in Slaughtered Livestock in Kermanshah (West Iran)
The prevalence rate of hydatid cyst in slaughtered livestock in Kermanshah was lowest, as compared with other regions of Iran, and hygienic programs should be done in order to decrease, control and prevent of parasitic infection. Expand


Epidemiology of hydatid disease in Kenya: a study of the domestic intermediate hosts in Masailand.
  • C. Macpherson
  • Biology, Medicine
  • Transactions of the Royal Society of Tropical Medicine and Hygiene
  • 1985
Sheep and goats are the most important intermediate hosts for the maintenance of the domestic life-cycle of E. granulosus in Masailand, Kenya, and the greater fertility of the sheep and, to a lesser extent, goat cysts coupled with the reported greater infectivity of sheep and goat than cattle material to dogs and the common Masai practice of slaughtering sheep and goats at home indicates that. Expand
[Hydatidosis in Sardinia. Co-involved parameters and hypothesis for a control campaign].
The socio-cultural factors involved in the dissemination, the economic implication of this disease, the benefits due to an eradication, the feasibility of a campaign and the organizational structure aimed at eradicating echinococcosis/hydatidosis in this area are discussed. Expand
Hydatidosis in Sardinia: review and recommendations.
The eradication campaign should result in a gradual reduction of infection rate from 80% to 10% in sheep, from 30% to 3-5% in dogs and in a reduction of human morbidity from 200 to 15 cases, equal to a prevalence rate of 1 per 100,000 inhabitants. Expand
[Human hydatidosis in Sardinia. Epidemiologic study of the cases operated on from 1974 to 1981].
A retrospective survey of surgical cases to obtain baseline data on hydatid disease in Sardinia from 1974 to 1981 revealed an annual mean rate of 11.1/100.000 population, suggesting the need of a continuous and well-planned control programme. Expand
Cost-effectiveness analysis of echinococcosis-hydatidosis eradication project in Sardinia.
In this study we attempt to evaluate the convenience of a campaign to eradicate the echinococcosis in Sardinia vs a 'do-nothing' or do-very-little policy adopted at this time. The main conditionsExpand
Hydatidosis and cysticercosis: the dynamics of transmission.
The infective pattern of taeniids in their intermediate hosts is determined by the complex interaction of parasite- and host-related factors, and particular emphasis has been placed on environmental factors that affect the free-living egg. Expand
Distribution of echinococcosis/hydatidosis in Italy.
Results of an epidemiological survey carried out in 88 slaughterhouses in Italy from 1979 to 1983 are reported. Data have been compared to national surveys previously conducted in 1955 and from 1968Expand
Blastogenic response of peripheral blood lymphocytes from multiparous pregnant ewes.
The results suggest that mitogen-treated lymphocytes were depressed and that the immunodepressive factor(s), which can influence lymphocytes at the systemic level, may be involved in the maintenance of the ovine fetal semiallograft. Expand
Processes influencing the distribution of parasite numbers within host populations with special emphasis on parasite-induced host mortalities.
It is shown that, for certain types of host-parasite associations, convex curves of mean parasite abundance in relation to age (age-intensity curves), concomitant with a decline in the degree of dispersion in the older age, classes of hosts, may be evidence of the induction in host mortality by parasite infection. Expand