Background The echinococcosis is prevalent in 10 provinces /autonomous region in western and northern China. Epidemiological survey of echinococcosis in China in 2012 showed the average prevalence of four counties in Tibet Autonomous Region (TAR) is 4.23%, much higher than the average prevalence in China (0.24%). It is important to understand the transmission risks and the prevalence of echinococcosis in human and animals in TAR. Methods A stratified and proportionate sampling method was used to select samples in TAR. The selected residents were examined by B-ultrasonography diagnostic, and the faeces of dogs were tested for the canine coproantigen against Echinococcus spp . using enzyme-linked immunosorbent assay. The internal organs of slaughtered domestic animals were examined by visual examination and palpation. The awareness of the prevention and control of echinococcosis among of residents and students was investigated using questionnaire. All data were inputted using double entry in the Epi Info database, with error correction by double-entry comparison, the statistical analysis of all data was processed using SPSS 21.0, and the map was mapped using ArcGIS 10.1, the data was tested by Chi-square test and Cochran-Armitage trend test. Results A total of 80 384 people, 7564 faeces of dogs, and 2103 internal organs of slaughtered domestic animals were examined. The prevalence of echinococcosis in humans in TAR was 1.66%, the positive rate in females (1.92%) was significantly higher than that in males (1.41%), ( χ 2 = 30.31, P < 0.01), the positive rate of echinococcosis was positively associated with age ( χ 2 trend = 423.95, P < 0.01), and the occupational populations with high positive rates of echinococcosis were herdsmen (3.66%) and monks (3.48%). The average positive rate of Echinococcus coproantigen in TAR was 7.30%. The positive rate of echinococcosis in livestock for the whole region was 11.84%. The average awareness rate of echinococcosis across the region was 33.39%. Conclusions A high prevalence of echinococcosis is found across the TAR, representing a very serious concern to human health. Efforts should be made to develop an action plan for echinococcosis prevention and control as soon as possible, so as to control the endemic of echinococcosis and reduce the medical burden on the population. Electronic supplementary material The online version of this article (10.1186/s40249-019-0537-5) contains supplementary material, which is available to authorized users.

Background Echinococcosis is highly endemic in western and northern China. Tibet Autonomous Region (TAR) is the most serious prevalent area. Linzhi is located in southeastern part of TAR. Dogs are the primary infection source for the transmission of echinococcosis to humans. A control and prevention campaign based on dog management has been implemented in the past three years. This study aims to evaluate the effects of dog management on the infection rate of dogs. Methods Data of dog population, registration and de-worming of seven counties/district in Linzhi between 2017 and 2019 were obtained from the annual prevention and control report. Domestic dog fecal samples were collected from each endemic town of seven counties/district in Linzhi in 2019 to determine the infection of domestic dogs using coproantigen enzyme-linked immunosorbent assay (ELISA). Data analysis was processed using SPSS statistics to compare dog infection rate between 2016 and 2019 by chi-square test, and maps were mapped using ArcGIS. Results In Linzhi, domestic dog population has decreased from 17 407 in 2017 to 12 663 in 2019, while the registration rate has increased from 75.9% in 2017 to 98.6% in 2019. Similarly, stray dog population has decreased from 14 336 in 2017 to 11 837 in 2019, while sheltered rate has increased from 84.6% in 2017 to 96.6% in 2019. Dog de-worming frequency has increased from 4 times per annum in 2017 to 12 times in 2019, indicating that approximately every dog was dewormed monthly. A total of 2715 dog fecal samples were collected for coproantigen ELISA assay. The dog infection rate was 2.8% (77/2715) in 2019, which was significantly lower than 7.3% (45/618) in 2016 (P < 0.05). Conclusions Increased dog registration, decreased dog population, and increased dog de-worming frequency contributed to significantly decrease the dog infection rate in Linzhi. Control and prevention campaign based on dog management could significantly decrease dog infection with Echinococcus spp. in echinococcosis endemic areas.

Background Echinococcosis is highly endemic in western and northern China, Tibet Autonomous Region （TAR）is one of the most serious prevalent areas where the prevalence of echinococcosis in 2016 was 1.66% in humans and dog infection rate was 7.30%. Linzhi is located in southeastern part of TAR where the prevalence of echinococcosis in 2016 was 1.55% in humans and in dog infection rate was 7.28%.Dogs are the main infection source for the transmission of echinococcosis to humans. A control and prevention campaignbased on dog management has been conductedin the past three years. This study is toevaluate the effects of dog management on infection rate of dogs.Methods Data of dog population, registration and de-worming of 7 counties/district in Linzhi from 2017 to 2019 were collected. Domestic dog fecal samples were collected from each endemic town of7 counties/district in Linzhiin 2019 to determine the infection of dogsusing coproantigen ELISA. Data analysis was processed using SPSS statistics to compare dog infection rate between 2016 and 2019 by chi-square test, and maps were mapped using ArcGIS.Results In Linzhi, domestic dog population decreased from 17407 in 2017, 16512 in 2018, to 12663 in 2019, whilethe registration rate increased from 75.92% in 2017, 95.48% in 2018, to 98.64% in 2019. Similarly, stray dog populationdecreased from 14336 in 2017, 13067 in 2018, to 11837 in 2019, while sheltered rateincreased from 84.63% in 2017, 92.32% in 2018, to 96.63% in 2019.Dog de-worming frequency increased from 4 times per annum in 2017 to 12 times in 2019, indicating almost every dog was dewormed monthly. A total of 2715 dog fecal samples were collected for coproantigen ELISA assay. The dog infection rate was 2.84% (77/2715) in 2019, which was significantly lower than7.28% (45/618) in 2016 (P＜0.05).Conclusion Increased dog registration, decreased dog population and increased dog de-worming frequency contributed to significantly decreased dog infection rate in Linzhi, TAR. Control and prevention campaign based on dog management can significantly decrease dog infection with Echinococcus spp in echinococcosis endemic areas.

BackgroundEchinococcosis is highly endemic in western and northern China，Tibet Autonomous Region （TAR）is one of the most serious prevalent area with the prevalence of echinococcosis in humans was 1.66% and in dog was 7.30% in 2016. Linzhi is located in southeastern part of TAR with the prevalence of echinococcosis in humans was 1.55% and in dog was 7.28% in 2016.，Dogs are the main infection source for the transmission of echinococcosis to humans. A control and prevention campaignbased on dog management has been undertaken in the past three years. This study is toevaluate the effects of dog management on prevalence of echinococcosis in dogs.MethodsData of dog population, registration and de-worming of 7 counties/district in Linzhi from 2017 to 2019 were collected. Domestic dog fecal samples were collected from each endemic town of7 counties/district in Linzhi in 2019 to determine infection of dog using coproantigen ELISA. Data analysis was processed using SPSS statistics to compare dog infection rate between 2016 and 2019 by chi-square test, and maps were mapped using ArcGIS.ResultsIn Linzhi, domestic dog population with 17407, 16512, 12663 decreased and the registration rate with 5.92%, 95.48%, 98.64% increased each year from 2017 to 2019. Similarly, stray dog population with 14336, 13067, 11837 decreased while sheltered rate with 84.63%, 92.32% 96.63% increased year by year. Dog de-worming frequency increased from 4 times per annum in 2017 to 12 times in 2019, almost every dog was dewormed monthly. A total of 2715 dog fecal samples were collected for coproantigen ELISA assay. The dog infection rate was 2.84% (77/2715) in 2019, which significantly lower than 2016 with 7.28% (45/618) (P＜0.05).ConclusionIncreased dog registration, decreased dog population and increased dog de-worming frequency contributed to significantly decreased dog infection rate in Linzhi, TAR. Control and prevention campaign based on dog management can significantly decrease dog infection with Echinococcus spp in echinococcosis endemic areas but needs strictly implementation.

Background Echinococcosis is highly endemic in western and northern China, Tibet Autonomous Region ( TAR) is the most serious prevalent area . Linzhi is located in southeastern part of TAR. Dogs are the main infection source for the transmission of echinococcosis to humans. A control and prevention campaign based on dog management has been conducted in the past three years. This study is to evaluate the effects of dog management on infection rate of dogs.Methods Data of dog population, registration and de-worming of seven counties/district in Linzhi were collected from the annual prevention and control report. Domestic dog fecal samples were collected from each endemic town of seven counties/district in Linzhi in 2019 to determine the infection of domestic dogs using coproantigen ELISA. Data analysis was processed using SPSS statistics to compare dog infection rate between 2016 and 2019 by chi-square test, and maps were mapped using ArcGIS.Results In Linzhi, domestic dog population has decreased from 17407 in 2017, 16512 in 2018, to 12663 in 2019, while the registration rate has increased from 75.9% in 2017, 95.5% in 2018, to 98.6% in 2019. Similarly, stray dog population has decreased from 14336 in 2017, 13067 in 2018, to 11837 in 2019, while sheltered rate has increased from 84.6% in 2017, 92.3% in 2018, to 96.6% in 2019. Dog de-worming frequency has increased from four times per annum in 2017 to 12 times in 2019, indicating that approximately every dog was dewormed monthly. A total number of 2715 dog fecal samples were collected for coproantigen ELISA assay. The dog infection rate was 2.8% (77/2715) in 2019, which was significantly lower than7.3% (45/618) in 2016 (P<0.05).Conclusions Increased dog registration, decreased dog population, and increased dog de-worming frequency contributed to significantly decreased dog infection rate in Linzhi, TAR. Control and prevention campaign based on dog management can significantly decrease dog infection with Echinococcus spp in echinococcosis endemic areas.