[Surveillance of soil-borne nematodiasis in population in Hefei City, 2012-2015].

OBJECTIVE

To analyze the surveillance results of soil-borne nematodiasis in Hefei City from 2012 to 2015, so as to provide the evidence formulating the Hefei "Thirteen-five" parasitic disease prevention strategy.

METHODS

The population in monitoring points in Changfeng County, Lujiang City and Chaohu County were investigated for Ascaris lumbricoides, Trichuristrichiura and hookworm infections with Kato-Katz technique every year from 2012 to 2015, and the children aged less than 6 years were checked for Enterobius vermicularis infection by using the cellophane tape method.

RESULTS

A total of 12 496 people were investigated from 2012 to 2015, the number of infections was 84, and among them, the number of hookworm infection was the most (70 cases) and the number of A. lumbricoides was the least (3 cases). The infection rate in 2014 was higher than that in other years, and there was a statistically significant difference (P < 0.008). There was a statistically significant difference among all age groups over 6 years of age in the infection rates (χ2 = 27.229, P < 0.05), and the infection rate of the age group over 66 years was higher than that of the other age groups. The infection rate in the female was higher than that in the male (χ2 = 5.378, P < 0.05). The infection rate in the monitoring point in Changfeng County was higher than that in the other monitoring points (P < 0.017).

CONCLUSIONS

From 2012 to 2015, the infection rate of soil-borne nematode infections is lower than 5% in Hefei City. The number of hookworm infection is the most. Therefore, during the "Thirteen five" period, the key point of prevention of parasitic infections is hookworm infection.