ABSTRACT
Objective To analyze the endemic status of schistosomiasis in Suzhou City from 2010 to 2020, so as to provide the evidence for formulating the future schistosomiasis control strategy. Methods The data pertaining to the endemic status of schistosomiasis in Suzhou City from 2010 to 2020 were retrieved from the annual schistosomiasis control report, the information management platform of schistosomiasis (parasitic diseases) in Jiangsu Province and the Parasitic Diseases Control Information Management System of Chinese Center for Disease Control and Prevention, including snail survey data, snail control data and schistosomiasis examination data, and were retrospectively reviewed. Differences of proportions were tested for statistical significance with chi-square test, and the trends in proportions were evaluated using the chi-square test for trends. Results Elimination of schistosomiasis was achieved in Suzhou City in 2018, and there were 3.528 9 million residents living in schistosomiasis-endemic villages of 81 townships in 9 counties. A total of 707 600 labor-days were used for snail survey in 11 586 village-times in Suzhou City from 2010 to 2020, covering 18 572.73 hm2, and snail habitats were detected with an area of 68.61 hm2, including emerging snail habitats of 37.30 hm2. A total of 23 144 snails were dissected, and no Schistosoma japonicum infection was detected. Reemerging and emerging snail habitats were predominantly found in inlands. During the period from 2010 to 2020, snail control was performed in Suzhou City for 71 000 labor-times, and snail control was done covering 269.34 hm2 through chemical treatment and covering 3.48 hm2 through environmental improvements. A total of 674 002 person-times received serological tests for S. japonicum infections in Suzhou City from 2010 to 2020, with seroprevalence of 0.38%, and a total of 33 835 person-times received stool examinations, with no egg-positives identified. The sero-prevalence of S. japonicum infections appeared an overall tendency towards a rise in Suzhou City from 2010 to 2020 (χ2 = 129.48, P < 0.001). The sero-prevalence of S. japonicum infections appeared high among local residents in 2016, and remained stable in other years, while the sero-prevalence of S. japonicum infections appeared an overall tendency towards a rise among mobile populations (χ2 = 54.11, P < 0.001). There were 278 800 and 175 202 serological tests among local residents and mobile populations in Suzhou City from 2013 to 2020, and 0.50% and 0.35% sero-prevalence rates were detected, respectively. The sero-prevalence of S. japonicum infections was significantly higher among local residents than among mobile populations in Suzhou City (χ2= 54.76, P < 0.001). Conclusions There is a risk of rebound of schistosomiasis in Suzhou City. Integrated control should be reinforced to prevent the risk of rebound of schistosomiasis in Suzhou City.
ABSTRACT
Objective To report the diagnosis and treatment of an imported case of schistosomiasis haematobia. Methods The patient’s medical records were collected, and the clinical features, laboratory diagnosis, epidemiological survey, diagnosis and treatment were analyzed. Results The patient had arrived to Sudan and Egypt for many times and had a history of contact with the infested water. After returning to China, the patient reported a gross hematuria with unknown causes. Cystoscopy showed neoplasms in the bladder, and pathologic examinations showed chronic granulomatous inflammation with infiltration of plenty of plasma cells, and parasite eggs. Serological test showed positive for the dipstick dye immunoassay, and the microscopic examination of urine sediment revealed Schistosoma haematobium eggs. Following praziquantel treatment for a month, S. haematobium eggs were still detected in the urine. The case was treated with praziquantel again and cured without adverse reactions. Conclusions Health education should be strengthened among China-aid-African workers to improve the awareness of self-protection. In addition, the diagnosis and treatment should be improved in medical professionals to achieve a timely definitive diagnosis.
ABSTRACT
Objective To report the diagnosis and treatment of an imported case of schistosomiasis haematobia. Methods The patient’s medical records were collected, and the clinical features, laboratory diagnosis, epidemiological survey, diagnosis and treatment were analyzed. Results The patient had arrived to Sudan and Egypt for many times and had a history of contact with the infested water. After returning to China, the patient reported a gross hematuria with unknown causes. Cystoscopy showed neoplasms in the bladder, and pathologic examinations showed chronic granulomatous inflammation with infiltration of plenty of plasma cells, and parasite eggs. Serological test showed positive for the dipstick dye immunoassay, and the microscopic examination of urine sediment revealed Schistosoma haematobium eggs. Following praziquantel treatment for a month, S. haematobium eggs were still detected in the urine. The case was treated with praziquantel again and cured without adverse reactions. Conclusions Health education should be strengthened among China-aid-African workers to improve the awareness of self-protection. In addition, the diagnosis and treatment should be improved in medical professionals to achieve a timely definitive diagnosis.