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Objective To understand the situation of Anisakis infection of in market-available marine fish in Dongtai City, so as to provide the evidence for the assessment of the risk of human Anisakis infections. Methods Raw and fresh marine fish caught in the sea of Dongtai City for sale were collected in 2018. The fish were weighted and dissected for the identification of Anisakis, and the prevalence and intensity of Anisakis infections were calculated. In addition, the correlation between the weight of Anisakis-infected marine fish and the infection intensity of Anisakis was examined. Results There were four species of marine fish infected with Anisakis, including Trichiurus haumela, Scomberomorus niphonius, Pneumatophorus japonicus and Larimichthys polyactis. Among the 149 fish samples, there were 78 with Anisakis infections, with a prevalence rate of 52.35%. The prevalence of Anisakis infection was 100.00% (28/28), 30.00% (9/30), 0 (0/30), 53.33% (16/30) and 80.65% (25/31) in T. haumela, S. niphonius, cuttle fish, P. japonicus and L. polyactis, respectively. A total of 1 049 Anisakis worms were collected, and the overall intensity of infection was 13.45 worms per fish. Spearman correlation analysis showed a positive correlation between the weight of T. haumela and the intensity of Anisakis infection (rs = 0.38, P = 0.047), and no correlation was found in other fish species. Conclusions There is a high rate of Anisakis infection in marine fish along the offshore areas of Dongtai City. Intensification of health education is required and healthy and safe dietary habits are encouranged.
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Objective To understand the situation of seroepidemiology of Toxoplasma gondii infection among employees in a pork food processing enterprise in Dongtai City. Methods Totally 200 employees from a pork food processing enterprise in Dongtai City were selected as the research objects. The venous blood of the selected population was extracted and the IgG antibody against T. gondii in serum was detected by ELISA, and the results were analyzed. Results Among the 200 employees, 36 cases were positive in IgG antibody detection, the positive rate was 18.0%. The positive rate of IgG antibody among workers with different length of service was significantly different (χ2 = 9.813, P < 0.05). With the increase of working age, the positive rate of IgG antibody gradually increased. The positive rate of IgG antibody to T. gondii was significantly higher in the population who had frequent contact with animals. Conclusions The positive rate of IgG antibody against T. gondii in employees in pork food processing enterprises is high. Therefore, the detection of antibodies against T. gondii and health education should be strengthened in this population.
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Objective To understand the situation of seroepidemiology of Toxoplasma gondii infection among employees in a pork food processing enterprise in Dongtai City. Methods Totally 200 employees from a pork food processing enterprise in Dongtai City were selected as the research objects. The venous blood of the selected population was extracted and the IgG antibody against T. gondii in serum was detected by ELISA, and the results were analyzed. Results Among the 200 employees, 36 cases were positive in IgG antibody detection, the positive rate was 18.0%. The positive rate of IgG antibody among workers with different length of service was significantly different (χ2 = 9.813, P < 0.05). With the increase of working age, the positive rate of IgG antibody gradually increased. The positive rate of IgG antibody to T. gondii was significantly higher in the population who had frequent contact with animals. Conclusions The positive rate of IgG antibody against T. gondii in employees in pork food processing enterprises is high. Therefore, the detection of antibodies against T. gondii and health education should be strengthened in this population.
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Objective To understand the characteristics of malaria endemic situation in Dongtai City from 1999 to 2013. Methods The data of diagnosed malaria cases and related information of prevention and treatment were collected and analyzed with the epidemiological method. Results From 1999 to 2013 there were 27 malaria cases in total and among which 2 cases were local-infected with Plasmodium vivax 10 cases were imported P. vivax infections 13 cases were imported P. falciparum infections and 1 case was a mixed infections P. falciparum P. vivax and P. ovale . The imported cases accounted for 92.59%and local-infected cases accounted for 7.41%. There were no local-infected cases after 2003 and all the cases were overseas-im-ported. The main first-diagnosis points were town hospitals and village health stations accounting for 33.33%and 33.33%re-spectively. Totally 62.96%of cases visited the clinic in 1 day after the attacking the median of time-interval from the attacking to visiting the clinic was 1 day the median of time-interval from the attacking to confirmed diagnosis was 3 days and the max time from the attacking to confirmed diagnosis was 33 days. Conclusion The malaria cases are mainly imported cases in Dong-tai City from 1999 to 2013 and therefore the key of eliminating malaria should be the monitoring of the retuned exporting la-bors.
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The surveillance of schistosomiasis in Dongtai City, Jiangsu Province from 2004 to 2008 showed that the achievements of schistosomiasis control in local were consolidated.