2024-03-052024-03-052008-12Diker, A. İ. vd. (2008). "Infectivity of Echinococcus granulosus protoscolices under different conditions of temperature and humidity". Journal of Helminthology, 82(4), 297-300.0022-149X1475-2697https://doi.org/10.1017/S0022149X08995055https://hdl.handle.net/11452/40212The aim of this study was to examine the effect of different temperatures and humidities on the infectivity of Echinococcus granulosus protoscolices. Eighteen dogs (6 groups, n = 3 each) were fed with offal mince harbouring approximately 20,000 protoscolices of E. granulosus of different viabilities. Dogs were infected with E. granulosus protoscolices of: (1) 5%, viability at -10 degrees C and 50% relative humidity (RH); (2) 30% viability at 0 degrees C and 60% RH; (3) 20% viability at +10 degrees C and 65% RH; (4) 15% viability at +30 degrees C and 75% RH; (5) 11% viability at +40 degrees C and 80% RH; (6) 68% viability (control group). Dogs in each group were necropsied at 29-49 days post-infection. Mean intensities of E. granulosus recovered from dogs were 256.7 +/- 60.3 in the second group; 32.7 +/- 7.1. in the third group; 40.3 +/- 15.5 in the fourth group and 1533 +/- 513 in the control group. However, no parasites were recovered from the first and fifth groups. Results obtained in the present study show that larval stages could be infective for 1 to 4 weeks during spring, autumn or winter months when maximal temperatures are approximately 0-10 degrees C. In conclusion, cold-storage depots in slaughterhouses and abattoirs where sheep carcasses might be discarded should be kept at -20 degrees C for 2-3 days, dogs should be properly controlled and adequate control programmes must be established in areas where the disease is endemic.eninfo:eu-repo/semantics/openAccessParasitologyZoologyCystic echinococcosisAnimalsClimateDog diseasesDogsEchinococcosisEchinococcus granulosusHumidityIntestinal diseases, parasiticIntestine, smallParasitologyTemperatureCanis familiarisEchinococcus granulosusOvis ariesArticle0002618999000032-s2.0-5434908878629730082418519005ParasitologyZoologyTaenia Hydatigena; Period Prevalence; LungwormsCanis familiarisEchinococcus granulosusOvis ariesAnimal cellAnimal experimentAnimal modelAnimal tissueArticleAutumnControlled studyCryopreservationDogEchinococcus granulosusFemaleHumidityInfection controlLarval stageMaleNonhumanParasite controlParasite survivalParasite viabilityParasite virulenceProtoscolexScolexSheepSlaughterhouseSpringTemperature dependenceTurkey (republic)Winter